{"id":62,"date":"2023-09-17T07:23:14","date_gmt":"2023-09-17T07:23:14","guid":{"rendered":"https:\/\/mathority.org\/ko\/%ec%b6%94%ec%b6%9c-%ec%b6%94%ec%b6%9c-%ec%97%b0%ec%8a%b5-%ea%b3%b5%ed%86%b5%ec%9d%b8%ec%88%98-%ed%92%80%ec%9d%b4-%ec%98%88\/"},"modified":"2023-09-17T07:23:14","modified_gmt":"2023-09-17T07:23:14","slug":"%ec%b6%94%ec%b6%9c-%ec%b6%94%ec%b6%9c-%ec%97%b0%ec%8a%b5-%ea%b3%b5%ed%86%b5%ec%9d%b8%ec%88%98-%ed%92%80%ec%9d%b4-%ec%98%88","status":"publish","type":"post","link":"https:\/\/mathority.org\/ko\/%ec%b6%94%ec%b6%9c-%ec%b6%94%ec%b6%9c-%ec%97%b0%ec%8a%b5-%ea%b3%b5%ed%86%b5%ec%9d%b8%ec%88%98-%ed%92%80%ec%9d%b4-%ec%98%88\/","title":{"rendered":"\uacf5\uc57d\uc218 \ucd94\ucd9c \ub610\ub294 \uc81c\uac70"},"content":{"rendered":"<p>\uc774 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub97c \ucde8\ud558\ub294(\ub610\ub294 \ucd94\ucd9c\ud558\ub294) \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ub2e4\uc591\ud55c \uc720\ud615\uc758 \uacf5\ud1b5 \uc778\uc790\ub97c \ucc3e\uc744 \uc218 \uc788\uc73c\uba70 \uc774\uac83\uc774 \uc5b4\ub5bb\uac8c \ub2ec\uc131\ub418\ub294\uc9c0\uc5d0 \ub300\ud55c \uba87 \uac00\uc9c0 \uc608\ub97c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ub2e8\uacc4\ubcc4\ub85c \ud574\uacb0\ub418\ub294 \uc5f0\uc2b5\ubb38\uc81c\ub85c \ud6c8\ub828\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-el-factor-comun\"><\/span> \uacf5\ud1b5\uc778\uc790\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c? <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"has-background\" style=\"background-color:#ffebee\"> \uc218\ud559\uc5d0\uc11c <strong>\uacf5\uc57d\uc218\ub294<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ud56d\uc5d0 \uc874\uc7ac\ud558\ub294 \uc778\uc218\uc785\ub2c8\ub2e4. \uc989, \uacf5\uc57d\uc218\ub294 \ub2e4\ud56d\uc2dd\uc758 \uac01 \ud56d\uc5d0 \uacf1\ud55c \uc22b\uc790\ub098 \ubb38\uc790\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n<p> \uc608\ub97c \ub4e4\uc5b4, \ub2e4\uc74c \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\uac00 \ubb34\uc5c7\uc778\uc9c0 \uc54c\uc544 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-55851b062b232cfea5dcd03351860f67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"4x+4y\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"59\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> 4\ubc88\uc5d0\uc11c\ub294 \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \uce21\uba74\uc5d0\uc11c \ubc18\ubcf5\ub429\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-85078c48d043da6cc82f7ccd94af281c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\color{red} \\bm{4} \\color{black} x + \\color{red} \\bm{4} \\color{black} y\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"191\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> \ub530\ub77c\uc11c \uc774 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 4\uc640 \uac19\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0f4364038f1bfdff454201e0a039ca86_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  \\text{Factor com\\'un} = 4 {\\phantom{\\frac{1}{2}}\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"139\" style=\"vertical-align: -1px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Como-sacar-o-extraer-factor-comun\"><\/span> \uacf5\uc57d\uc218\ub97c \uad6c\ud558\ub294(\ub610\ub294 \ucd94\ucd9c\ud558\ub294) \ubc29\ubc95<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \uacf5\ud1b5\uc778\uc218\uc758 \uc758\ubbf8\ub97c \uc54c\uc558\uc73c\uba74 \uc774\uc81c \ub2e4\ud56d\uc2dd\uc5d0\uc11c \uacf5\ud1b5\uc778\uc218\ub97c \uad6c\ud558\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<p class=\"has-background\" style=\"background-color:#ffebee\"> \ub2e4\ud56d\uc2dd\uc758 \ub450 \uac1c \uc774\uc0c1\uc758 \ud56d\uc774 \uacf5\ud1b5 \uc778\uc218\ub97c \uac16\ub294 \uacbd\uc6b0, <strong>\uacf5\ud1b5 \uc778\uc218\ub97c \ucde8\ud558\uc5ec \ub2e4\ud56d\uc2dd\uc758 \ub367\uc148\uc774\ub098 \ube84\uc148\uc744 \uacf1\uc148\uc73c\ub85c \ubcc0\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/strong> .<\/p>\n<p> \uc791\uc131\ud558\uae30\uac00 \uc870\uae08 \uc5b4\ub824\uc6cc \ubcf4\uc77c \uc218 \uc788\uc73c\ubbc0\ub85c \uc608\ub97c \ub4e4\uc5b4 \ub2e4\ud56d\uc2dd\uc5d0\uc11c \uacf5\uc57d\uc218\ub97c \ucd94\ucd9c\ud558\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/extraire-ou-supprimer-le-facteur-commun-dun-polynome.png\" alt=\"\ub2e4\ud56d\uc2dd\uc5d0\uc11c \uacf5\ud1b5 \uc778\uc218\ub97c \ucd94\ucd9c\ud558\uac70\ub098 \uc81c\uac70\ud569\ub2c8\ub2e4.\" class=\"wp-image-1497\" width=\"155\" height=\"156\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p> \uc608\uc81c\uc5d0\uc11c \ubcfc \uc218 \uc788\ub4ef\uc774 \ub2e8\ud56d\uc2dd 5x\uc640 \ub2e8\ud56d\uc2dd 5y\uc5d0\uc11c \uc22b\uc790 5\uac00 \ubc18\ubcf5\ub418\ubbc0\ub85c \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\ub294 5\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \uacf5\uc57d\uc218\ub97c \uc2dd\ubcc4\ud558\uba74 \ub2e8\ud56d\uc2dd\uc758 \ud569\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \ubcc0\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc81c\ud488.<\/p>\n<p class=\"has-background\" style=\"background-color:#fffde7\"> \uacf5\ud1b5\uc778\uc218\ub294 \ubaa8\ub4e0 \uac00\uc218\ub97c \uacf1\ud574\uc57c \ud558\ubbc0\ub85c, \uacf5\ud1b5\uc778\uc218\ub97c \ucd94\ucd9c\ud560 \ub54c \uad04\ud638\ub97c \ub123\ub294 \uac83\uc744 \uc78a\uc9c0 \ub9c8\uc138\uc694.<\/p>\n<p> \uacf5\ud1b5\uc778\uc218\ub97c \uc81c\uac70\ud558\ub294 \uac83\uc740 <strong>\ubd84\ubc30\ubc95\uce59<\/strong> \uc758 \ubc18\ub300 \uc5f0\uc0b0\uc785\ub2c8\ub2e4. \uc989, \uc2e4\uc81c\ub85c \ubd84\ubc30\ubc95\uce59\uc744 \uc5ed\uc73c\ub85c \uc801\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ubbc0\ub85c \uc6b0\ub9ac\ub294 \uc5ed\uacfc\uc815\uc744 \uc218\ud589\ud568\uc73c\ub85c\uc368 \uacf5\uc57d\uc218\ub97c \uc62c\ubc14\ub974\uac8c \ucd94\ucd9c\ud588\ub294\uc9c0 \ud56d\uc0c1 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li> \ubd84\ubc30\ubc95\uce59\uc744 \uc801\uc6a9\ud558\uc5ec \ucc98\uc74c\ubd80\ud130 \ub3d9\uc77c\ud55c \ub2e4\ud56d\uc2dd\uc744 \uc5bb\ub294\ub2e4\uba74 \uc774\ub294 \uacf5\ud1b5\uc778\uc218\ub97c \uc62c\ubc14\ub974\uac8c \uad6c\ud588\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4.<\/li>\n<li> \ubc18\uba74, \ubd84\ubc30\ubc95\uce59\uc744 \uc0ac\uc6a9\ud55c \uacb0\uacfc\uac00 \uc6d0\ub798\uc758 \ub2e4\ud56d\uc2dd\uacfc \ub2e4\ub978 \ub610 \ub2e4\ub978 \ub2e4\ud56d\uc2dd\uc778 \uacbd\uc6b0, \uc774\ub294 \uacf5\uc57d\uc218\ub97c \ucd94\ucd9c\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \uc2e4\uc218\ub97c \ud588\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. <\/li>\n<\/ul>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/propriete-distributive-du-facteur-commun.jpg\" alt=\"\uacf5\ud1b5\uc778\uc218\uc640 \ubd84\ubc30\ubc95\uce59\" class=\"wp-image-1502\" width=\"317\" height=\"197\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-sacar-o-extraer-factor-comun\"><\/span> \uacf5\ud1b5\uc778\uc218 \ucd94\ucd9c(\ub610\ub294 \ucd94\ucd9c)\uc758 \uc608<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \uacf5\ud1b5 \uc778\uc218\uc758 \uac1c\ub150\uc744 \uc644\uc804\ud788 \uc774\ud574\ud558\uae30 \uc704\ud574 \ub354 \ub9ce\uc740 \uc608\ub97c \uc81c\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 1<\/h3>\n<p> \uc774 \uc608\uc5d0\uc11c \ubcfc \uc218 \uc788\ub4ef\uc774 \ub450 \uac1c \uc774\uc0c1\uc758 \ud56d\uc5d0\uc11c \ub3d9\uc2dc\uc5d0 \uacf5\ud1b5 \uc778\uc218\ub97c \ucd94\ucd9c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/calculateur-de-facteur-commun.jpg\" alt=\"\uacf5\ud1b5 \uc778\uc790 \uacc4\uc0b0\uae30\" class=\"wp-image-1509\" width=\"231\" height=\"145\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 2<\/h3>\n<p> \ubcc0\uc218(\ub610\ub294 \ubb38\uc790)\uc5d0\uc11c \uacf5\ud1b5 \uc778\uc218\ub97c \ucd94\ucd9c\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/extrait-du-facteur-commun-dans-les-expressions-algebriques.jpg\" alt=\"\ub300\uc218\uc2dd\uc5d0\uc11c \uacf5\ud1b5\uc778\uc218 \ucd94\ucd9c\" class=\"wp-image-1512\" width=\"199\" height=\"145\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p> \uc774 \uacbd\uc6b0 \ubb38\uc790 x\ub294 \ub2e4\ud56d\uc2dd\uc758 \ub450 \ud56d\uc744 \uacf1\ud558\ubbc0\ub85c \ubcc0\uc218 x\ub97c \uacf5\ud1b5 \uc778\uc218\ub85c \uc0ac\uc6a9\ud558\uc5ec \ub300\uc218\uc2dd\uc744 \ub2e8\uc21c\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 3<\/h3>\n<p> \uc774 \uc608\uc5d0\uc11c \uccab \ubc88\uc9f8 \ud56d\uc5d0\ub294 \ubcc0\uc218 x\uac00 3\uc81c\uacf1\ub418\uace0 \ub450 \ubc88\uc9f8 \ud56d\uc5d0\uc11c\ub294 x\uac00 2\uc81c\uacf1\ub418\ubbc0\ub85c \ub450 \ud56d \ubaa8\ub450 2\uac1c\uc758 x\ub97c \uac16\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uacf5\ud1b5 \uc778\uc218\ub294 x\uac00 \uc544\ub2c8\ub77c x <sup>2<\/sup> \uc785\ub2c8\ub2e4. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/algebre-facteur-commun-de-x-au-carre.jpg\" alt=\"\ub300\uc218 x \uc81c\uacf1\uc758 \uacf5\ud1b5\uc778\uc218\" class=\"wp-image-1515\" width=\"190\" height=\"143\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p> \ubc18\uba74, <strong>\ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\uac00 \ud56d\uacfc \uc815\ud655\ud788 \uc77c\uce58\ud558\ub294 \uacbd\uc6b0 \uacf5\uc57d\uc218\ub97c \ucd94\ucd9c\ud560 \ub54c \uadf8 \uc790\ub9ac\uc5d0 1\uc744 \ub123\uc5b4\uc57c \ud55c\ub2e4\ub294 \uc810\uc5d0<\/strong> \uc720\uc758\ud558\uc138\uc694. \uadf8\ub807\uc9c0 \uc54a\uace0 \uadf8 \uc790\ub9ac\uc5d0 \uc544\ubb34\uac83\ub3c4 \ub123\uc9c0 \uc54a\uc73c\uba74 \ub3d9\ub4f1\ud55c \ud45c\ud604\uc744 \uc5bb\uc744 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/comment-extraire-ou-extraire-le-facteur-commun.jpg\" alt=\"\uacf5\ud1b5\uc778\uc218\ub97c \ucd94\ucd9c\ud558\uac70\ub098 \ucc3e\ub294 \ubc29\ubc95\" class=\"wp-image-1516\" width=\"284\" height=\"230\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 4<\/h3>\n<p> \ub54c\ub85c\ub294 \uacf5\ud1b5 \uc778\uc218\uac00 \uba85\ud655\ud558\uc9c0 \uc54a\uace0 \uc9c1\uc811\uc801\uc73c\ub85c \ud45c\uc2dc\ub418\uc9c0 \uc54a\ub294 \uacbd\uc6b0\ub3c4 \uc788\uc9c0\ub9cc \uc624\ud788\ub824 \ub2e8\ud56d\uc2dd <strong>\uacc4\uc218\uc758 \uc81c\uc218<\/strong> \uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub2e4\uc74c \uc608\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 3\uc785\ub2c8\ub2e4. 6\uacfc 9\uc758 \uacc4\uc2b9 \ubd84\ud574\uc5d0\ub294 3\uc774 \ud3ec\ud568\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/le-plus-grand-facteur-commun.jpg\" alt=\"\ucd5c\ub300 \uacf5\ud1b5 \uc778\uc790\" class=\"wp-image-1521\" width=\"235\" height=\"149\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p> \uc774\ub7ec\ud55c \uc720\ud615\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 \uc77c\ubd80 \ub300\uc218 \ucc45\uc5d0\uc11c <em>\ucd5c\ub300 \uacf5\ud1b5 \uc778\uc218<\/em> \ub77c\uace0 \ud569\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \uacf5\ud1b5 \uc778\uc218\ub294 \ub3d9\uc2dc\uc5d0 \ub2e4\ud56d\uc2dd \ud56d \uacc4\uc218\uc758 \ucd5c\ub300 \uacf5\ud1b5 \uc778\uc218(GCD)\uc774\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n<p> \uc5ec\uae30\uae4c\uc9c0 \ud574\ub0c8\ub2e4\uba74 \uc774\ub294 \uc544\ub9c8\ub3c4 \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\ub97c \ucc3e\ub294 \ubc29\ubc95\uc744 \uc774\ubbf8 \uc644\ubcbd\ud558\uac8c \uc54c\uace0 \uc788\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \uadf8\ub7f0\ub370 <span style=\"text-decoration: underline;\">\uacf5\ud1b5\uc778\uc790\uac00 \ubb34\uc5c7\uc778\uc9c0 \uad81\uae08\ud558\uc9c0 \uc54a\uc73c\uc168\ub098\uc694?<\/span> \uc74c, \uacf5\ud1b5 \uc778\uc218\uc758 \ud55c \uac00\uc9c0 \uc801\uc6a9\uc740 \ub2e4\ud56d\uc2dd\uc744 \uc778\uc218\ubd84\ud574\ud558\ub294 \ub370 \uc0ac\uc6a9\ub41c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \uc544\uc9c1\ub3c4 \uadf8\uac83\uc774 \ubb34\uc5c7\uc778\uc9c0 \ubaa8\ub978\ub2e4\uba74 \uc774 \ub9c1\ud06c\uc5d0\uc11c <a href=\"https:\/\/mathority.org\/ko\"><strong><span style=\"text-decoration: underline;\">\ub2e4\ud56d\uc2dd \uc778\uc218\ubd84\ud574\uac00<\/span><\/strong><\/a> \ubb34\uc5c7\uc778\uc9c0, \uadf8\ub9ac\uace0 \uc774 \ub2e4\ud56d\uc2dd \uc5f0\uc0b0\uc744 \uc218\ud589\ud558\ub294 \ub370 \uacf5\ud1b5\uc778\uc790\uac00 \uc65c \uadf8\ub807\uac8c \uc911\uc694\ud55c\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factor-comun-en-fracciones\"><\/span> \ubd84\uc218\uc758 \uacf5\ud1b5\uc778\uc218<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \uacf5\ud1b5\uc778\uc218\ub294 \ud56d\uc744 \ubd84\uc790\uc640 \ubd84\ubaa8\uc5d0 \ub2e4\ud56d\uc2dd\uc774 \uc788\ub294 \ubd84\uc218\ub85c \ub2e8\uc21c\ud654\ud558\ub294 \ub370\uc5d0\ub3c4 \ub9e4\uc6b0 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<p> \uc774\uac83\uc774 \uc5b4\ub5bb\uac8c \uc218\ud589\ub418\ub294\uc9c0 \ubcf4\uae30 \uc704\ud574 \uc608\ub97c \ub4e4\uc5b4 \ub2e4\uc74c \ubd80\ubd84\uc744 \ub2e8\uc21c\ud654\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-926e853d2437425b652f2c47844cf056_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{2x^2+4}{14x+8y}\" title=\"Rendered by QuickLaTeX.com\" height=\"45\" width=\"68\" style=\"vertical-align: -16px;\"><\/p>\n<\/p>\n<p> \uac00\uc7a5 \uba3c\uc800 \ud574\uc57c \ud560 \uc77c\uc740 \ubd84\uc790 \ub2e4\ud56d\uc2dd\uacfc \ubd84\ubaa8 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5\uc778\uc218\ub97c \ucc3e\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ub450 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 2\uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8dc50e00c20a758293d8d2dc74fb8f7c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{\\color{red} \\bm{2} \\color{black}\\cdot x^2+\\color{red} \\bm{2} \\color{black}\\cdot 2 }{\\color{red} \\bm{2} \\color{black}\\cdot 7x+\\color{red} \\bm{2} \\color{black} \\cdot 4y}\" title=\"Rendered by QuickLaTeX.com\" height=\"45\" width=\"235\" style=\"vertical-align: -16px;\"><\/p>\n<\/p>\n<p> \uc774\uc81c \ub450 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub97c \ucd94\ucd9c\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e66d7e737e76389a6294c4ececffbbd0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{\\color{red} \\bm{2} \\color{black}\\left(x^2+2\\right)}{\\color{red} \\bm{2} \\color{black}\\left(7x+4y\\right)}\" title=\"Rendered by QuickLaTeX.com\" height=\"46\" width=\"151\" style=\"vertical-align: -17px;\"><\/p>\n<\/p>\n<p> \uadf8\ub9ac\uace0 \ub450 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub97c \uc5bb\uc740 \ud6c4\uc5d0 <strong>\ub294 \ubd84\uc790\uc640 \ubd84\ubaa8\uc5d0\uc11c \ubc18\ubcf5\ub418\ub294 \uc778\uc218\ub97c \uc81c\uac70\ud574\uc57c \ud569\ub2c8\ub2e4<\/strong> .<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5bcc4a8a84c802f1510baebfc8f4f126_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{\\cancel{2}\\left(x^2+2\\right)}{ \\cancel{2}\\left(7x+4y\\right)}\" title=\"Rendered by QuickLaTeX.com\" height=\"46\" width=\"85\" style=\"vertical-align: -17px;\"><\/p>\n<\/p>\n<p> \uacb0\ub860\uc801\uc73c\ub85c \ub2e8\uc21c\ud654\ub41c \ubd84\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f035f7e96fe7afd4c93cef5a93c249f3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{x^2+2}{7x+4y}\" title=\"Rendered by QuickLaTeX.com\" height=\"45\" width=\"59\" style=\"vertical-align: -16px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Factor-comun-por-agrupacion\"><\/span> \uadf8\ub8f9\ud654\ubcc4 \uacf5\ud1b5\uc778\uc218<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \ub2e4\ud56d\uc2dd\uc758 \ud56d\uc744 \uc904\uc774\ub294 \ud55c \uac00\uc9c0 \ubc29\ubc95\uc740 <strong>\ud56d\uc744 \uadf8\ub8f9\ud654\ud558\uc5ec \uc774\uc911 \uacf5\ud1b5\uc778\uc218 \ucd94\ucd9c\uc774\ub77c\uace0\ub3c4 \ud558\ub294 \uacf5\ud1b5\uc778\uc218 \ubc29\ubc95\uc744<\/strong> \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774\ub984\uc5d0\uc11c \uc54c \uc218 \uc788\ub4ef\uc774 \uc774 \uc808\ucc28\ub294 \ud56d\uc744 \ub450 \ubc88 \uadf8\ub8f9\ud654\ud558\uc5ec \ub2e4\ud56d\uc2dd\uc758 \ud45c\ud604\uc744 \ub2e8\uc21c\ud654\ud558\ub294 \uac83\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4.<\/p>\n<p> \uc774 \ubc29\ubc95\uc740 \ub2e4\uc18c \ubcf5\uc7a1\ud558\ubbc0\ub85c \ub2e4\uc74c \ub2e4\ud56d\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub2e8\uacc4\ubcc4\ub85c \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fb6a8ed826038a265d2b21c9d086a8ee_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2+2x+5x+10\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"139\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p> \uba3c\uc800 \ub450 \uac00\uc9c0 \uc11c\ub85c \ub2e4\ub978 \uacf5\ud1b5 \uc778\uc218\ub97c \uacb0\uc815\ud574\uc57c \ud558\ubbc0\ub85c \ub2e4\ud56d\uc2dd\uc744 \ub450 \ubd80\ubd84\uc73c\ub85c \ub098\ub215\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d9dfcd08553e61ba0be3791c055bd0ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(x^2+2x)+(5x+10)\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"164\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \uc774 \uacbd\uc6b0 <sup>x2<\/sup> \uc640 2x\uc758 \uc6d0\uc18c\ub294 x\ub97c \uacf5\ud1b5\uc778\uc218\ub85c \uac16\uace0, 5x\uc640 10\uc758 \uc6d0\uc18c\ub294 5\ub97c \uacf5\ud1b5\uc778\uc218\ub85c \uac16\ub294\ub2e4(10\uc740 5\uc758 \ubc30\uc218\uc774\ubbc0\ub85c). \ub530\ub77c\uc11c \uc6b0\ub9ac\uc5d0\uac8c\ub294 \ub2e4\uc74c \ub450 \uac00\uc9c0 \uacf5\ud1b5\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-96393c2563ce4dcedade0d979a6ce9c1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(x\\cdot x+2\\cdot x)+(5\\cdot x+5\\cdot 2)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"218\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-859b9fdc443c61344efe64ea1c561565_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x(x+2)+5(x+2)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"149\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \uadf8\ub9ac\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub098\uba38\uc9c0 \ub450 \ub2e4\ud56d\uc2dd \uacf1\uc740 \uc778\uc218 (x+2)\ub97c \uac00\uc9c0\ubbc0\ub85c \ub2e4\uc74c\uacfc \uac19\uc774 \ub2e4\ud56d\uc2dd\uc744 \ub2e8\uc21c\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-730e68f7964706bfd88cdf23c0c7376f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(x+2)\\cdot (x+5)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"120\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ubcf4\uc2dc\ub2e4\uc2dc\ud53c \uc774 \ubc29\ubc95\uc740 \uc804\ud600 \uc27d\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub2c8 \uc8fc\uc800\ud558\uc9c0 \ub9c8\uc2dc\uace0 \ub313\uae00\ub85c \uc9c8\ubb38\uc744 \ub0a8\uaca8\uc8fc\uc2dc\uba74 \ucd5c\ub300\ud55c \ube68\ub9ac \ub2f5\ubcc0\ud574\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-paso-a-paso-de-factor-comun\"><\/span> \ub2e8\uacc4\ubcc4\ub85c \ud574\uacb0\ub418\ub294 \uacf5\ud1b5\uc778\uc218 \uc5f0\uc2b5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \ub2e4\ud56d\uc2dd\uc5d0\uc11c \uacf5\ud1b5\uc778\uc218\ub97c \ucd94\ucd9c\ud558\ub294 \uc5f0\uc2b5\uc744 \ud560 \uc218 \uc788\ub3c4\ub85d \ub2e8\uacc4\ubcc4\ub85c \uba87 \uac00\uc9c0 \ubb38\uc81c\ub97c \ud480\uc5b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\"> \uc5f0\uc2b5 1<\/h3>\n<p> \ub2e4\uc74c \ub2e4\ud56d\uc2dd\uc5d0\uc11c \uacf5\ud1b5\uc778\uc218\ub97c \ucd94\ucd9c\ud569\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d0ebbf8633cd83e917eef6b61be195f5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ 6a+6b\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"83\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8e6c228a58b589aea75d96ac06489ce8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ 3x^2+8x\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"93\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6b2f716764369b8748180f11c2088405_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ 2x-4\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"75\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4fe0000a9ab02d158e8e5c238614f2a1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ -5x^4+x^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"113\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__DDF5FF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#DDF5FF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>\uc194\ub8e8\uc158 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> <strong>A)<\/strong> \uccab \ubc88\uc9f8 \ub2e4\ud56d\uc2dd\uc744 \uad6c\uc131\ud558\ub294 \ubaa8\ub4e0 \ud56d\uc740 6\uc744 \uac00\uc9c0\ubbc0\ub85c \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\ub294 6\uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-dcfc02b18324ae47e4f6161c02ed10a8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"6a+6b = 6\\cdot a + 6 \\cdot b = \\bm{6\\cdot (a+b)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"259\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>B)<\/strong> \ub450 \ubc88\uc9f8 \ub2e4\ud56d\uc2dd\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \uc694\uc18c\uc5d0 \ucd5c\uc18c\ud55c \ud558\ub098\uc758 \ubb38\uc790 x\uac00 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d5397f749d2af52e3d25f47ac6763236_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x^2+8x = 3x \\cdot x+8\\cdot x= \\bm{x\\cdot (3x+8)}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"296\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>C)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \uccab \ubc88\uc9f8 \ub2e8\ud56d\uc2dd\uc740 \ubd84\uba85\ud788 2\ub97c \uac16\uace0, \ub450 \ubc88\uc9f8 \ub2e8\ud56d\uc2dd\uc740 2\uc758 \ubc30\uc218\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 2\uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-403fd331c25d97df08b1a6e265b874f7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2x-4= 2\\cdot x - 2\\cdot 2 =\\bm{2\\cdot (x-2)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"256\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>D)<\/strong> \ub9c8\uc9c0\ub9c9 \ub2e4\ud56d\uc2dd\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \ubcc0\uc218\uac00 \ucd5c\uc18c\ud55c \uc81c\uacf1\ub429\ub2c8\ub2e4. \ub530\ub77c\uc11c \uacf5\ud1b5 \uc778\uc218\ub294 x <sup>2<\/sup> \uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9f5b04e6c70d455f570dea79a1caf289_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-5x^4+x^2= -5x^2\\cdot x^2 +1 \\cdot x^2 = \\bm{x^2\\cdot (-5x^2+1)}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"373\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \uacf5\ud1b5\uc778\uc790\uac00 \ud56d\uacfc \ub3d9\uc77c\ud558\uba74 \uadf8 \uc790\ub9ac\uc5d0 1\uc744 \ub123\uc5b4\uc57c \ud55c\ub2e4\ub294 \uc810\uc744 \uae30\uc5b5\ud558\uc138\uc694.<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\"> \uc5f0\uc2b5 2<\/h3>\n<p> \ub2e4\uc74c \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub97c \uace0\ub824\ud558\uc2ed\uc2dc\uc624. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6e62899cc63709635736efb76c383ec0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ 8x^2 + 10y^3\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"109\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9c467706436dd57e76ccd016cd70110a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ 5x^3-2x^2+4x\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"141\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-16d9856d9e0d050d484ce1def25a9757_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ 25x^5+15x^3-20\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"158\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a03f69699de681226d47227124a68a5d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\  9x^4-3x^3-21x^2-6x\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"199\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__DDF5FF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#DDF5FF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>\uc194\ub8e8\uc158 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> <strong>A)<\/strong> \uccab \ubc88\uc9f8 \ub2e4\ud56d\uc2dd\uc744 \uad6c\uc131\ud558\ub294 \uc694\uc18c\uc758 \ubaa8\ub4e0 \uacc4\uc218\ub294 2\uc758 \ubc30\uc218\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \uacf5\ud1b5 \uc778\uc218\ub97c \ucd94\ucd9c\ud558\uba74 \ub2e4\ud56d\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7862ee57cf098358e43d3b669e0cb54d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l} 8x^2 + 10y^3  = \\\\[2ex] = 2\\cdot 4x^2 +2\\cdot 5y^3 = \\\\[2ex] = \\bm{2\\left(4x^2+5y^3\\right)} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"154\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>B)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \uce21\uba74\uc5d0\uc11c \uc801\uc5b4\ub3c4 \ud558\ub098\uc758 x\uac00 \uc788\uc73c\ubbc0\ub85c:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-39551a1ffc0b98f8b9c037fdcc793b01_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}5x^3-2x^2+4x = \\\\[2ex] = 5x^2\\cdot x-2x\\cdot x+4\\cdot x= \\\\[2ex] =\\bm{x\\left(5x^2-2x+4\\right)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"203\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>C)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ud56d \uacc4\uc218\uc758 \ucd5c\ub300 \uacf5\uc57d\uc218\ub294 5\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud574\ub2f9 \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\ub294 5\uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fe8cc019c3511734ff278f68c44066df_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}25x^5+15x^3-20 = \\\\[2ex] =5\\cdot 5x^5+5\\cdot 3x^3-5\\cdot 4 = \\\\[2ex] = \\bm{5\\left(5x^5+3x^3-4\\right)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"207\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>D)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ud56d\uc740 \uc801\uc5b4\ub3c4 \ud558\ub098\uc758 x\ub97c \uac00\uc9c0\uba70, \ub610\ud55c \ubaa8\ub4e0 \uacc4\uc218\ub294 3\uc758 \ubc30\uc218\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 3x\uc785\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fb70701f39b1050eec730f1591671293_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}9x^4-3x^3-21x^2-6x = \\\\[2ex] = 3x^3\\cdot 3x-x^2\\cdot 3x-7x\\cdot 3x-2\\cdot 3x= \\\\[2ex] = \\bm{3x\\left(3x^3-x^2-7x-2 \\right)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"301\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\uc5f0\uc2b5 3<\/h3>\n<p> \ub2e4\uc74c \uac01 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5\uc778\uc218\ub97c \ucc3e\uc544 \ube7c\uc138\uc694. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1d40bfaef04f667f19afd89bed2c5c6b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ 4a^2b^5+7a^4b^3-10a^6b^4\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"202\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-be1557edebbdaa17ea43aa69cf14a8c4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ 16x^4y^7z+8x^2y^2z^2+ 24x^3y^5\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"243\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d493a7783ca2a21e55e60bcf2af7748d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ 6ab^2c^4-6ab^2c+12a^3b^2c\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"217\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d2cc5c9bbb43ac4387ad806fefc4d643_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\  18x^2y+10xy-5xy^3+4z\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"227\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__DDF5FF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#DDF5FF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>\uc194\ub8e8\uc158 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> <strong>A)<\/strong> \ubaa8\ub4e0 \ub2e8\ud56d\uc2dd\uc5d0\ub294 \ucd5c\uc18c\ud55c \ubb38\uc790\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5c53d6ebabdbcfa4e107550ea60b1b19_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uc81c\uacf1\uacfc \ubb38\uc790<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f56d50c26583f9a035ff6b4e3c0ca5c0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"b\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uc138\uc81c\uacf1\uc774\ubbc0\ub85c \uacf5\ud1b5\uc778\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f369f018d950bc237c46322c9b05d60b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a^2b^3:\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"41\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b622844f35f4bd4411c545c352331943_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l} 4a^2b^5+7a^4b^3-10a^6b^4 = \\\\[2ex] = 4b^2\\cdot a^2b^3+7a^2\\cdot a^2b^3-10a^4b\\cdot a^2b^3 = \\\\[2ex] = \\bm{a^2b^3\\left(4b^2+7a^2-10a^4b\\right)} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"308\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>B)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \uacc4\uc218\ub294 8\uc758 \ubc30\uc218\uc774\uba70, \ub610\ud55c \ubb38\uc790 \uadf8\ub300\ub85c \ucd5c\uc18c\ud55c x <sup>2<\/sup> \ubc0f y <sup>2\ub97c<\/sup> \uac16\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub294 8x <sup>2<\/sup> y <sup>2<\/sup> \uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2d7018f427d800f6db67335a4d4f238b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}16x^4y^7z+8x^2y^2z^2+ 24x^3y^5 = \\\\[2ex] = 2x^2y^5z \\cdot 8x^2y^2 +z^2\\cdot 8x^2y^2+ 3xy^3\\cdot 8x^2y^2= \\\\[2ex] =\\bm{8x^2y^2\\left(2x^2y^5z+z^2+3xy^3\\right)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"355\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>\ub2e4)<\/strong> \uc774 \uacbd\uc6b0, \uacf5\ud1b5\uc778\uc218\ub294 \uc911\uac04\ub2e8\ud56d\uc2dd\uc758 \uac12\uacfc \uc77c\uce58\ud55c\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-57647d998c69941eadc01ee28cf3e5cf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left(6ab^2c\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"54\" style=\"vertical-align: -7px;\"><\/p>\n<p> , \ub2e4\ub978 \ub2e8\ud56d\uc2dd\uc758 \uacc4\uc218\ub294 \ub2e4\uc74c\uc758 \ubc30\uc218\uc774\ubbc0\ub85c<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b5c3e12330dabaeec7413281aba0f134_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"6\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uadf8\ub9ac\uace0 \uc808\ub300\uc801\uc73c\ub85c \ubaa8\ub4e0 \uc0ac\ub78c\uc774 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4302e041ad21bfe7a384223fd3d35f1c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"ab^2c:\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"41\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-76f91563726822a51c7bfe88aa461e6d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}6ab^2c^4-6ab^2c+12a^3b^2c = \\\\[2ex] =c^3\\cdot 6ab^2c -1\\cdot 6ab^2c+2a^2 \\cdot 6ab^2c = \\\\[2ex] = \\bm{6ab^2c\\left(c^3-1+2a^2\\right)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"292\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>D)<\/strong> \uc774 \ud2b9\ubcc4\ud55c \uacbd\uc6b0, \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ud56d\uc5d0\uc11c \uc778\uc218\uac00 \ubc18\ubcf5\ub418\uc9c0 \uc54a\uc73c\ubbc0\ub85c \ub2e4\ud56d\uc2dd\uc5d0\ub294 \uacf5\ud1b5 \uc778\uc218\uac00 \uc5c6\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\ud56d\uc2dd\uc740 \ub300\uc218\uc801\uc73c\ub85c \ub2e8\uc21c\ud654\ub420 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3c58c3237bfa4a57d2e87d36b1eebab0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"18x^2y+10xy-5xy^3+4z\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"200\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\uc5f0\uc2b5 4<\/h3>\n<p> \uacf5\ud1b5 \uc778\uc218\ub97c \ucde8\ud558\uc5ec \ub2e4\uc74c \ub300\uc218 \ubd84\uc218\ub97c \ub2e8\uc21c\ud654\ud569\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-73e11e8ebb8c064d2981506461d693c4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\cfrac{10x^2+30}{5x-20}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"103\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-401feeca45cc41913c5e9f64d2821535_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\cfrac{16x^2-8}{24x-32}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"95\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b4354346c86ff374869cc9a6029bbcdc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ \\cfrac{49x^3+7x}{35x^2-14}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"105\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4221a799a5650e5afdab728cb2797be9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\  \\cfrac{8x^4+16x^3-4x^2}{12x^2+20x}\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"161\" style=\"vertical-align: -14px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__DDF5FF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#DDF5FF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>\uc194\ub8e8\uc158 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> \ub300\uc218\uc801 \ubd84\uc218, \uc989 \ub2e4\ud56d\uc2dd\uc774 \uc788\ub294 \ubd84\uc218\ub97c \ub2e8\uc21c\ud654\ud558\ub294 \uc808\ucc28\ub294 \ubd84\uc218\uc758 \ubd84\uc790\uc640 \ubd84\ubaa8\uc5d0\uc11c \uacf5\ud1b5\uc778\uc218\ub97c \ucd94\ucd9c\ud55c \ud6c4 \uc704\uc640 \uc544\ub798\uc5d0\uc11c \ubc18\ubcf5\ub418\ub294 \uc778\uc218\ub97c \uc81c\uac70\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ubd84\uc218 \uc544\ub798. \uadf8\ub798\uc11c: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6ce28a7207aa3bccea5a8afae54c8ad5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\quad \\begin{array}{l} \\cfrac{10x^2+30}{5x-20}=  \\cfrac{5\\cdot 2x^2 +5\\cdot 6}{5\\cdot x-5\\cdot 4} = \\\\[4ex] = \\cfrac{5(2x^2+6)}{5(x-4)}= \\cfrac{\\cancel{5}(2x^2+6)}{\\cancel{5}(x-4)} = \\\\[4ex] = \\cfrac{\\bm{2x^2+6}}{\\bm{x-4}} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"173\" width=\"276\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a6024cf2af6c13d0d27f7e5d3e675362_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\quad \\begin{array}{l} \\cfrac{16x^2-8}{24x-32} = \\cfrac{8 \\cdot 2x^2+8 \\cdot (-1)}{8 \\cdot 3x-8 \\cdot 4} =\\\\[4ex] = \\cfrac{8(2x^2-1)}{8(3x-4)}= \\cfrac{\\cancel{8}(2x^2-1)}{\\cancel{8}(3x-4)} =\\\\[4ex] = \\cfrac{\\bm{2x^2-1}}{\\bm{3x-4}} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"173\" width=\"292\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5678b7c6d631a693a86fad40aa79d030_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\quad \\begin{array}{l}\\cfrac{49x^3+7x}{35x^2-14}=\\cfrac{7x\\cdot 7x^2+7x\\cdot 1}{7 \\cdot 5x^2+7\\cdot (-2)} =\\\\[4ex] = \\cfrac{7x(7x^2+1)}{7(5x^2-2)}= \\cfrac{\\cancel{7}x(7x^2+1)}{\\cancel{7}(5x^2-2)}=\\\\[4ex] = \\cfrac{\\bm{x(7x^2+1)}}{\\bm{5x^2-2}} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"173\" width=\"301\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-82199184b3594c18db6888c58fa0bdfc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\quad \\begin{array}{l} \\cfrac{8x^4+16x^3-4x^2}{12x^2+20x}=\\cfrac{4x^2\\cdot 2x^2+4x^2\\cdot 4x+4x^2\\cdot (-1)}{4x\\cdot 3x+4x\\cdot 5}=\\\\[4ex] = \\cfrac{4x^2(2x^2+4x-1)}{4x(3x+5)}= \\cfrac{\\cancel{4}x^{\\cancel{2}}(2x^2+4x-1)}{\\cancel{4}\\cancel{x}(3x+5)}=\\\\[4ex] = \\cfrac{\\bm{x(2x^2+4x-1)}}{\\bm{3x+5}} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"175\" width=\"474\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\uc5f0\uc2b5 5<\/h3>\n<p> \ub2e4\uc74c \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub97c \ucde8\ud558\uc2ed\uc2dc\uc624. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8e5c91e0867615671956c23daf199f56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\cfrac{7}{3}x^2+ \\cfrac{8}{3}x-\\cfrac{2}{3}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"130\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-861358103d4265a73b6bf2c12a5c315d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\sqrt{12x^3+16}\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"115\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-592bb1e112ee966a6c8266f8453176d5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ x^2+4x-3x-12\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"163\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6ea1c6302c0ee60f46718b42a2741bf3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\  \\cfrac{3}{4}x^2+ \\cfrac{1}{2}x-\\cfrac{5}{6}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"130\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__DDF5FF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#DDF5FF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>\uc194\ub8e8\uc158 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> <strong>A)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ud56d\uc740 3\ucc28\ub85c \uacc4\uc2b9 \ubd84\ud574\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-66174ecc5c7264ae95507f632d1f2630_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l} \\cfrac{7}{3}x^2+ \\cfrac{8}{3}x-\\cfrac{2}{3}= \\\\[3ex] = \\cfrac{1}{3}\\cdot 7x^2+ \\cfrac{1}{3}\\cdot 8x-\\cfrac{1}{3}\\cdot 2 = \\\\[3ex] = \\mathbf{\\cfrac{1}{3}}\\bm{\\left(7x^2+8x-2\\right)} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"156\" width=\"205\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>B)<\/strong> \uadfc \ub0b4\ubd80 \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\ub294 4\uc774\uc9c0\ub9cc, \uadf8 \uc81c\uacf1\uadfc\uc744 \uacc4\uc0b0\ud558\uc5ec \uacf5\uc57d\uc218\ub97c \ucd9c\ub825\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3a362644fe5b22fefc962f164db26f5e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}\\sqrt{12x^3+16}= \\\\[2ex] =\\sqrt{4\\cdot 3x^3+4\\cdot 4}= \\\\[2ex]=\\sqrt{4\\left(3x^3+4\\right)}= \\\\[2ex] =\\bm{2\\sqrt{3x^3+4}}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"133\" width=\"152\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>C)<\/strong> \uc774 \ub2e4\ud56d\uc2dd\uc5d0\uc11c \uc6b0\ub9ac\ub294 \uadf8\ub8f9\ud654\ub97c \ud1b5\ud574 \uacf5\ud1b5 \uc778\uc218\ub97c \ucd94\ucd9c\ud558\ub294 \ud504\ub85c\uc138\uc2a4\ub97c \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fd43d5f40797c39b0401769ff392d9e5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}x^2+4x-3x-12= \\\\[2ex] =x(x+4)-3(x+4) = \\\\[2ex] = \\bm{(x+4)(x-3)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"95\" width=\"186\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> <strong>D)<\/strong> \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ubd84\uc218 \uacc4\uc218\ub294 \uc808\ubc18\uc758 \ubc30\uc218\uc774\ubbc0\ub85c \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\ub294 \u00bd\uc785\ub2c8\ub2e4. <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a35ab3db2e1f1197d6652e6d4d0a8a8a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}\\displaystyle \\frac{3}{4}x^2+ \\frac{1}{2}x-\\frac{5}{6}= \\\\[4ex] \\displaystyle = \\frac{1}{2}\\cdot\\frac{3}{2}x^2+ \\frac{1}{2}\\cdot x-\\frac{1}{2}\\cdot\\frac{5}{3}= \\\\[4ex] \\displaystyle = \\mathbf{\\frac{1}{2}}\\bm{\\left(}\\mathbf{\\frac{3}{2}}\\bm{x^2+x-}\\mathbf{\\frac{5}{3}} \\bm{\\right)}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"166\" width=\"210\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<p> \ud83d\udc47\ud83d\udc47\ud83d\udc47 \uc124\uba85\uc744 \ub4e3\uace0 \uc5b4\ub5a4 \uc0dd\uac01\uc774 \ub4dc\uc168\ub098\uc694? \ub9c8\uc74c\uc5d0 \ub4e4\uc5c8\ub098\uc694? \ub610\ud55c \ub2e4\ud56d\uc2dd\uc758 \uacf5\uc57d\uc218\uac00 \uc5b4\ub5bb\uac8c \uacb0\uc815\ub418\ub294\uc9c0\uc5d0 \ub300\ud574 \uad81\uae08\ud55c \uc810\uc774 \uc788\uac70\ub098 \uc5f0\uc2b5 \ubb38\uc81c\ub97c \uc774\ud574\ud558\uc9c0 \ubabb\ud558\ub294 \uacbd\uc6b0 \uc5b8\uc81c\ub4e0\uc9c0 \ub313\uae00\ub85c \uc9c8\ubb38\ud558\uc2dc\uba74 \ub2f5\ubcc0\ud574 \ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \ud83d\udc47\ud83d\udc47\ud83d\udc47<\/p>\n<div id=\"ezoic-pub-ad-placeholder-176\" data-inserter-version=\"-1\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\uc774 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 \ub2e4\ud56d\uc2dd\uc758 \uacf5\ud1b5 \uc778\uc218\ub97c \ucde8\ud558\ub294(\ub610\ub294 \ucd94\ucd9c\ud558\ub294) \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ub2e4\uc591\ud55c \uc720\ud615\uc758 \uacf5\ud1b5 \uc778\uc790\ub97c \ucc3e\uc744 \uc218 \uc788\uc73c\uba70 \uc774\uac83\uc774 \uc5b4\ub5bb\uac8c \ub2ec\uc131\ub418\ub294\uc9c0\uc5d0 \ub300\ud55c \uba87 \uac00\uc9c0 \uc608\ub97c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ub2e8\uacc4\ubcc4\ub85c \ud574\uacb0\ub418\ub294 \uc5f0\uc2b5\ubb38\uc81c\ub85c \ud6c8\ub828\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacf5\ud1b5\uc778\uc790\ub294 \ubb34\uc5c7\uc785\ub2c8\uae4c? \uc218\ud559\uc5d0\uc11c \uacf5\uc57d\uc218\ub294 \ub2e4\ud56d\uc2dd\uc758 \ubaa8\ub4e0 \ud56d\uc5d0 \uc874\uc7ac\ud558\ub294 \uc778\uc218\uc785\ub2c8\ub2e4. \uc989, \uacf5\uc57d\uc218\ub294 \ub2e4\ud56d\uc2dd\uc758 \uac01 \ud56d\uc5d0 \uacf1\ud55c \uc22b\uc790\ub098 \ubb38\uc790\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub2e4\uc74c &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ko\/%ec%b6%94%ec%b6%9c-%ec%b6%94%ec%b6%9c-%ec%97%b0%ec%8a%b5-%ea%b3%b5%ed%86%b5%ec%9d%b8%ec%88%98-%ed%92%80%ec%9d%b4-%ec%98%88\/\"> <span class=\"screen-reader-text\">\uacf5\uc57d\uc218 \ucd94\ucd9c \ub610\ub294 \uc81c\uac70<\/span> \ub354 \ubcf4\uae30 &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[17],"tags":[],"class_list":["post-62","post","type-post","status-publish","format-standard","hentry","category-17"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u25b7 \uacf5\uc57d\uc218 \uc81c\uac70(\ub610\ub294 \ucd94\ucd9c) \ubc29\ubc95 \u2705 (\ud480\uc774\ubb38\uc81c)<\/title>\n<meta name=\"description\" content=\"\uc774\uac83\uc774 \ubb34\uc5c7\uc778\uc9c0, \uadf8\ub9ac\uace0 \ub2e4\ud56d\uc2dd\uc5d0\uc11c \uacf5\ud1b5\uc778\uc218\ub97c \uc81c\uac70(\ub610\ub294 \ucd94\ucd9c)\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \u2705 \ub610\ud55c, \ub2e8\uacc4\ubcc4\ub85c \ud574\uacb0\ub418\ub294 \uc608\uc2dc\uc640 \uc5f0\uc2b5\ubb38\uc81c\ub97c \ubcf4\uc2e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \u2705\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathority.org\/ko\/\ucd94\ucd9c-\ucd94\ucd9c-\uc5f0\uc2b5-\uacf5\ud1b5\uc778\uc218-\ud480\uc774-\uc608\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta 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