{"id":329,"date":"2023-07-06T07:57:24","date_gmt":"2023-07-06T07:57:24","guid":{"rendered":"https:\/\/mathority.org\/ko\/%ec%b0%a8%ec%9d%b4%ec%97%90-%ec%9d%98%ed%95%9c-%ed%95%a9%ec%9d%98-%ea%b3%b1%ec%97%90-%eb%8c%80%ed%95%9c-%ea%b3%b5%ec%8b%9d\/"},"modified":"2023-07-06T07:57:24","modified_gmt":"2023-07-06T07:57:24","slug":"%ec%b0%a8%ec%9d%b4%ec%97%90-%ec%9d%98%ed%95%9c-%ed%95%a9%ec%9d%98-%ea%b3%b1%ec%97%90-%eb%8c%80%ed%95%9c-%ea%b3%b5%ec%8b%9d","status":"publish","type":"post","link":"https:\/\/mathority.org\/ko\/%ec%b0%a8%ec%9d%b4%ec%97%90-%ec%9d%98%ed%95%9c-%ed%95%a9%ec%9d%98-%ea%b3%b1%ec%97%90-%eb%8c%80%ed%95%9c-%ea%b3%b5%ec%8b%9d\/","title":{"rendered":"\ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uc0b0\ubb3c(\ub180\ub77c\uc6b4 \uc544\uc774\ub374\ud2f0\ud2f0)"},"content":{"rendered":"<p>\uc774 \ud398\uc774\uc9c0\uc5d0\uc11c\ub294 \ud569\uacc4\uc640 \ucc28\uc774\uc758 \uacf1\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc744 \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \uc774\ub7ec\ud55c \ub180\ub77c\uc6b4 \uc720\ud615\uc758 \uc544\uc774\ub374\ud2f0\ud2f0 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud55c \uc608\ub97c \ubcfc \uc218 \uc788\uc73c\uba70, \ub2e8\uacc4\ubcc4\ub85c \ud480\uc5b4\ub0b8 \uc5f0\uc2b5 \ubb38\uc81c\ub97c \ud1b5\ud574 \uc5f0\uc2b5\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-el-producto-de-la-suma-por-la-diferencia\"><\/span> \ud569\uacfc \ucc28\uc774\uc758 \uacf1\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \uc218\ud559\uc5d0\uc11c <strong>\ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uacf1\uc774\ub77c\ub294<\/strong> \uac1c\ub150\uc740 <strong><span style=\"text-decoration: underline;\"><a href=\"https:\/\/mathority.org\/ko\/\u110c\u1165\u11bc\u110e\u1166\u1109\u1165\u11bc-\u110c\u1166\u1111\u116e\u11b7-\u110c\u116e\u1106\u1169\u11a8\u1112\u1161\u11af-\u1106\u1161\u11ab\u1112\u1161\u11ab-\u1111\u1167\u11bc\u1103\u1173\u11bc-\u1112\u1162\u1100\u1167\u11af\u1103\u116c\u11ab-\u110b\u1167\u11ab\u1109\u1173\u11b8\/\">\uc8fc\ubaa9\ud560\ub9cc\ud55c \ub3d9\uc77c\uc131 \ub610\ub294 \uc8fc\ubaa9\ud560 \ub9cc\ud55c \uacf1\uc774\ub77c\uace0\ub3c4 \ud558\ub294 \uc8fc\ubaa9\ud560\ub9cc\ud55c \ud3c9\ub4f1<\/a><\/span><\/strong> \uc911 \ud558\ub098\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4.<\/p>\n<p> \ubcf4\ub2e4 \uc815\ud655\ud558\uac8c\ub294 \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uacf1\uc5d0 \ub300\ud55c \ud45c\ud604\uc740 <strong>(a+b)\u00b7(ab)<\/strong> \ud615\uc2dd\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc11c (a+b)\ub294 \uc11c\ub85c \ub2e4\ub978 \ub450 \ud56d\uc758 \ud569\uc5d0 \ud574\ub2f9\ud558\uace0 (ab)\ub294 \ucc28\uc774\uc785\ub2c8\ub2e4. \uc774 \ub3d9\uc77c\ud55c \ub450 \uc6a9\uc5b4 \uc911. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Formula-del-producto-de-la-suma-por-la-diferencia\"><\/span> \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uacc4\uc758 \uacf1\uc5d0 \ub300\ud55c \uacf5\uc2dd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \uc774\uc81c \uc6b0\ub9ac\ub294 \ucc28\uc774 \uacf1\uc148\uc758 \uc218\ud559\uc801 \uc815\uc758\ub97c \uc54c\uc558\uc73c\ubbc0\ub85c \uc774 \ub180\ub77c\uc6b4 \uc720\ud615\uc758 \ud56d\ub4f1\uc2dd\uc744 \ud480\uae30 \uc704\ud574 \uc5b4\ub5a4 \uacf5\uc2dd\uc774 \uc0ac\uc6a9\ub418\ub294\uc9c0 \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\/produit-de-la-somme-par-la-difference.png\" alt=\"\ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uacf1\" class=\"wp-image-2278\" width=\"255\" height=\"256\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<p> \ub530\ub77c\uc11c <strong>\ub450 \ud56d\uc758 \ucc28\uc774\uc5d0 \ud569\uc744 \uacf1\ud55c \uac12\uc740 \uc774\ub4e4 \ud56d\uc758 \uc81c\uacf1\uc758 \ucc28\uc774\uc640 \uac19\uc2b5\ub2c8\ub2e4<\/strong> . \uc989, \uc11c\ub85c \ub2e4\ub978 \ub450 \ud56d\uc758 \ud569\uc5d0 \ub3d9\uc77c\ud55c \ub450 \ud56d\uc744 \ube7c\ub294 \uac83\uc740 \ub450 \ud56d\uc744 \uac01\uac01 \uc81c\uacf1\ud558\uace0 \ube7c\ub294 \uac83\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<p> \uc774\ub294 <a href=\"https:\/\/mathority.org\/ko\/\u110c\u1166\u1100\u1169\u11b8\u110b\u1174-\u110e\u1161\u110b\u1175-\u1104\u1169\u1102\u1173\u11ab-\u1108\u1162\u11af\u1109\u1166\u11b7\/\"><strong><span style=\"text-decoration: underline;\">\uc81c\uacf1\uc758 \ucc28\uc774\uac00<\/span><\/strong><\/a> \ud569\uacc4\uc5d0 \ucc28\uc774\ub97c \uacf1\ud55c \uacb0\uacfc\ub85c \uc778\uc218\ubd84\ud574\ub420 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc9c0\uae08\uc740 \ubcf5\uc7a1\ud574 \ubcf4\uc77c \uc218\ub3c4 \uc788\uc9c0\ub9cc \ub9c1\ud06c\ub41c \ud398\uc774\uc9c0\uc5d0\uc11c \uc774\ub7ec\ud55c \uc720\ud615\uc758 \ub2e4\ud56d\uc2dd\uc744 \ub450 \uac00\uc9c0 \uac04\ub2e8\ud55c \ub2e8\uacc4\ub85c \uc778\uc218\ubd84\ud574\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \ud074\ub9ad\ud558\uc5ec \uc644\ub8cc \ubc29\ubc95\uc744 \uc54c\uc544\ubcf4\uc138\uc694. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-productos-de-sumas-por-diferencias\"><\/span> \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uacc4\uc758 \uc608<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \ud569\uacfc \ucc28\uc774\uc758 \uacf1\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc774 \ubb34\uc5c7\uc778\uc9c0 \uc54c\uac8c \ub418\uba74, \ub2e4\uc74c\uc73c\ub85c \uc774 \ub180\ub77c\uc6b4 \uc720\ud615\uc758 \ud3c9\ub4f1\uc774 \uc5b4\ub5bb\uac8c \ud574\uacb0\ub418\ub294\uc9c0 \ub354 \uc798 \uc774\ud574\ud560 \uc218 \uc788\ub3c4\ub85d \uba87 \uac00\uc9c0 \ud574\uacb0\ub41c \uc608\ub97c \ubcfc \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 1<\/h3>\n<ul>\n<li> \uacf5\uc2dd\uc744 \uc801\uc6a9\ud558\uc5ec \ub450 \uac00\uc9c0 \ub2e4\ub978 \ud56d\uc758 \ucc28\uc774\ub85c \ub2e4\uc74c\uacfc \uac19\uc740 \ud569\uacc4\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4306df75f7e6d774f71a001d93d0a830_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(x+2)\\cdot (x-2)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"120\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uacf1\uc758 \uacf5\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-e1868f84409086d4b0b21464e4a4f207_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)\\cdot (a-b) =a^2-b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"194\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ub530\ub77c\uc11c \uac00\uc7a5 \uba3c\uc800 \ud574\uc57c \ud560 \uc77c\uc740 \ub9e4\uac1c\ubcc0\uc218 \uac12\uc744 \uc2dd\ubcc4\ud558\ub294 \uac83\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-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> \uadf8\ub9ac\uace0<\/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> \uacf5\uc2dd\uc758. \uc774 \uacbd\uc6b0<\/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> \ubcc0\uc218\uc5d0 \ud574\ub2f9<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ede05c264bba0eda080918aaa09c4658_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uadf8\ub9ac\uace0<\/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> \uc22b\uc790 2\uc5d0 \ud574\ub2f9\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-87b76b09924467ba75f033336e6a18e5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{l} (a+b)\\cdot (a-b) \\\\[2ex] (x+2)\\cdot (x-2) \\end{array} \\color{red} \\right\\} \\quad \\color{red}\\bm{\\longrightarrow}\\quad  \\color{black} \\begin{array}{c} a=x \\\\[2ex] b=2 \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"355\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> \uc774\uc81c \ub9e4\uac1c\ubcc0\uc218\uac00 \uc5b4\ub5a4 \uac12\uc744 \ucde8\ud558\ub294\uc9c0 \uc54c\uc558\uc73c\ub2c8<\/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> \uadf8\ub9ac\uace0<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a521efcd0a946cd643aebe98b5b41a3c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"b,\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"12\" style=\"vertical-align: -4px;\"><\/p>\n<p> \ucc28\uc774\ub85c \ud569\uacc4\ub97c \uacf1\ud558\ub294 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p>\ubcf4\uc2dc\ub2e4\uc2dc\ud53c, \ud569\uacc4\uc640 \ucc28\uc774\uc758 \uacf1\uc740 \ud56d\uc0c1 \uc74c\uc218 \ud56d\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc774\uac83\uc744 \ube84\uc148\uc758 \uc81c\uacf1\uc758 \ub180\ub77c\uc6b4 \ub3d9\uc77c\uc131\uacfc \ud63c\ub3d9\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc758\uc2ec\uc2a4\ub7ec\uc6b4 \uc810\uc774 \uc788\uc73c\uba74 <strong><span style=\"text-decoration: underline;\"><a href=\"https:\/\/mathority.org\/ko\/\u110e\u1161\u110b\u1175-\u1104\u1169\u1102\u1173\u11ab-\u1108\u1162\u1100\u1175\u110b\u1174-\u110c\u1166\u1100\u1169\u11b8\/\">\ucc28\uc774\uc758 \uc81c\uacf1\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc774<\/a><\/span><\/strong> \ubb34\uc5c7\uc778\uc9c0 \uc0b4\ud3b4\ubcf4\uace0 \uc774 \ub450 \uac00\uc9c0 \ub180\ub77c\uc6b4 \uc815\uccb4\uc131\uc758 \ucc28\uc774\uc810\uc774 \ubb34\uc5c7\uc778\uc9c0 \uc54c\uc544\ubcfc \uac83\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 2<\/h3>\n<ul>\n<li> \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uc774\ud56d\uc2dd\uc758 \ucc28\uc774\ub85c \ub2e4\uc74c \ud569\uacc4\ub97c \uad6c\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-186f562faed63e636884263f5854f0e5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(3x+5)\\cdot (3x-5)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"138\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uacf1\uc758 \uacf5\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-e1868f84409086d4b0b21464e4a4f207_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)\\cdot (a-b) =a^2-b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"194\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ub530\ub77c\uc11c \uc774 \uacbd\uc6b0<\/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-723d3ff64e92fa43145366202ce30f60_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a=3x\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"52\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uadf8\ub9ac\uace0<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b41cd8020624a683feb6c7e88b71c9ff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"b=5\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"39\" style=\"vertical-align: 0px;\"><\/p>\n<p> . \ub530\ub77c\uc11c \ucc28\uc774 \uacf5\uc2dd\uc73c\ub85c \ud569\uc744 \uc801\uc6a9\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \ub300\uc218 \ud45c\ud604\uc2dd\uc744 \uc5bb\uc744 \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-fffde1dd457ab276c3d53e1d1e23616d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(3x+5)\\cdot (3x-5) = (3x)^2-5^2 = 9x^2-25\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"330\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h3 class=\"wp-block-heading\"> \uc2e4\uc2dc\uc608 3<\/h3>\n<ul>\n<li> \ub450 \ub2e8\ud56d\uc2dd\uc758 \ucc28\uc774\ub85c \ub2e4\uc74c \ud569\uacc4\uc758 \uacf1\uc744 \uacf5\uc2dd\uc73c\ub85c \ud480\uc5b4\ubcf4\uc138\uc694.<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-409155e85d07804a9333bd48429940ec_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(4x-2y)\\cdot (4x+2y)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"156\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \uacf1\uc148\uc740 \uad50\ud658 \ud2b9\uc131\uc744 \uac00\uc9c0\ubbc0\ub85c \uba3c\uc800 \ucc28\uc774\ub97c \uacf1\ud55c \ub2e4\uc74c \ub450 \uc218\ub7c9\uc758 \ud569\uc744 \uacf1\ud558\ub294 \uac83\uc740 \ub3d9\uc77c\ud55c \uad04\ud638\ub97c \uc5ed\uc73c\ub85c \uacf1\ud558\ub294 \uac83\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-583e6cc781617efdb7061c82ae11ec0b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(4x-2y)\\cdot (4x+2y) = (4x+2y)\\cdot (4x-2y)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"338\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ub530\ub77c\uc11c \uc774 \uacbd\uc6b0 \uacf1\uc774 \ubc18\uc804\ub418\ub354\ub77c\ub3c4, \uc989 \ub367\uc148\uc774 \ube84\uc148\uc774 \ub418\uae30 \uc804\uc5d0 \uacb0\uacfc\ub294 \uacf5\uc2dd\uacfc \ub3d9\uc77c\ud558\uac8c \uc720\uc9c0\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-e1868f84409086d4b0b21464e4a4f207_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)\\cdot (a-b) =a^2-b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"194\" 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-72246fd1126cb58a3fb86376fba4f0d6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a-b)\\cdot (a+b) =a^2-b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"194\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \uadf8\ub798\uc11c \uc774 \ubb38\uc81c\uc5d0\uc11c\ub294<\/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-5231d0029f85ab0321bb3d4b9e25ec80_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a=4x\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"52\" style=\"vertical-align: 0px;\"><\/p>\n<p> \uadf8\ub9ac\uace0<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f3fbd7a3d02814e8c9770e23ece10400_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"b=2y\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"49\" style=\"vertical-align: -4px;\"><\/p>\n<p> . \uadf8\ub9ac\uace0 \uac01\uac01\uc758 \uc54c\ub824\uc9c0\uc9c0 \uc54a\uc740 \uac12\uc744 \uc2dd\ubcc4\ud558\uba74 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc8fc\ubaa9\ud560\ub9cc\ud55c \uc81c\ud488\uc744 \uacc4\uc0b0\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-3ff47675eb3b0a4db49ff32ebe471744_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(4x-2y)\\cdot (4x+2y)= (4x)^2-(2y)^2 = 16x^2-4y^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"389\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Demostracion-de-la-formula-de-la-suma-por-la-diferencia\"><\/span> \ucc28\uc774 \uacf5\uc2dd\uc5d0 \uc758\ud55c \ud569\uacc4 \uc2dc\uc5f0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \ubc29\uae08 \uacf5\ubd80\ud55c \ud569\uacfc \ucc28\uc774\uc758 \uacf5\uc2dd\uc740 \uc27d\uac8c \uc99d\uba85\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p> \ub450 \ud56d\uc744 \ube7c\uc11c \ud569\uacc4\uc758 \uacf1\uc5d0\uc11c \uc2dc\uc791\ud558\uba74:<\/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-226e878dd6855cddf50e1bd6eeed0eab_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)\\cdot (a-b)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"116\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> \ubd84\ubc30\ubc95\uce59\uc744 \uc0ac\uc6a9\ud558\uc5ec \uccab \ubc88\uc9f8 \uad04\ud638\uc5d0 \ub450 \ubc88\uc9f8 \uad04\ud638\ub97c \uacf1\ud558\uba74 \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-346d3d7ca4da1e71fad52c84a33ef4fc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}(a+b)\\cdot (a-b)= \\\\[2ex] = a\\cdot a +a\\cdot (-b) +b \\cdot a +b\\cdot (-b) =\\\\[2ex] = a^2 -ab+ba-b^2\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"91\" width=\"276\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> \uadf8\ub9ac\uace0 \uc720\uc0ac\ud55c \uc6a9\uc5b4\ub97c \uadf8\ub8f9\ud654\ud558\uc5ec \ub2e4\uc74c\uacfc \uac19\uc740 \ud45c\ud604\uc744 \uc5bb\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-cc83a078573a59dfd63c1a7cdad77e01_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a^2 -ab+ba-b^2=a^2-b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"209\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p> \ub530\ub77c\uc11c \uc8fc\ubaa9\ud560\ub9cc\ud55c \ucc28\uc774\ubcc4 \ud569\uacc4 \uacf1\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc774 \ub3c4\ucd9c\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-e1868f84409086d4b0b21464e4a4f207_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)\\cdot (a-b) =a^2-b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"194\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-del-producto-de-la-suma-por-diferencia\"><\/span> \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uacc4\uc758 \uacf1\uc5d0 \ub300\ud55c \ud574\uacb0\ub41c \uc5f0\uc2b5\ubb38\uc81c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> \uc544\ub798\uc5d0\ub294 \uc5ec\ub7ec\ubd84\uc774 \uc5f0\uc2b5\ud560 \uc218 \uc788\ub3c4\ub85d \ucc28\uc774\uc810 \uc5f0\uc2b5\uc744 \ud1b5\ud574 \uba87 \uac00\uc9c0 \ub2e8\uacc4\ubcc4\ub85c \ud574\uacb0\ub41c \ub367\uc148 \ubb38\uc81c\ub97c \uc900\ube44\ud588\uc2b5\ub2c8\ub2e4. \uc5f0\uc2b5\uc740 \uac00\uc7a5 \uc5b4\ub824\uc6b4 \uac83\ubd80\ud130 \uac00\uc7a5 \uc5b4\ub824\uc6b4 \uac83 \uc21c\uc73c\ub85c \uc815\ub82c\ub418\uc5b4 \uc788\uc73c\ubbc0\ub85c 1\ubd80\ud130 \uc2dc\uc791\ud558\uc5ec 2\ub97c \uacc4\uc18d\ud558\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uac00\uc7a5 \uc5b4\ub824\uc6b4 3\uc744 \uc218\ud589\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n<p> \u2b07\u2b07\uad81\uae08\ud55c \uc810\uc740 \ub313\uae00\ub85c \ub0a8\uaca8\uc8fc\uc2dc\uba74 \ub41c\ub2e4\ub294 \uc810 \uc78a\uc9c0 \ub9c8\uc138\uc694!\u2b07\u2b07<\/p>\n<h3 class=\"wp-block-heading\"> \uc5f0\uc2b5 1<\/h3>\n<p> \ub2e4\uc74c\uacfc \uac19\uc740 \ud569\uc758 \uacf1\uc744 \ucc28\uc774\ub85c \ud480\uc5b4\ubcf4\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-3a101dc0bb3e2ab901e5a441cdb22369_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ (x+5)(x-5)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"134\" 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-5a3cc5a2bfc3829e05fbf0cc6fd4dea9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ (2x+6)(2x-6)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"151\" 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-5b3b43f8e1142337f367f44c27632578_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ (x+7)(x-7)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"134\" 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-80db9b8cb45a16f2c4b4dd810f0ef940_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ (x-4y)(x+4y)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"153\" 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>\ud574\uacb0\ucc45 \ubcf4\uae30<\/strong> <\/div>\n<\/div>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b9857bf825403b9bb0b16fe08f338ac4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\begin{array}{l}(x+5)(x-5) = \\\\[2ex] =x^2-5^2=\\\\[2ex] = \\bm{x^2-25}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"89\" width=\"167\" 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-7b16ddf395da600fb7bc3b5d62a328d3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\begin{array}{l}(2x+6)(2x-6) = \\\\[2ex] =(2x)^2-6^2=\\\\[2ex] = \\bm{4x^2-36}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"89\" width=\"184\" 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-7109d4edfb32c8d194a747f30f23de59_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ \\begin{array}{l}(x+7)(x-7) = \\\\[2ex] =x^2-7^2=\\\\[2ex] = \\bm{x^2-49}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"89\" width=\"166\" 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-ddc7c482ee40aa839c39f218036b2ac3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ \\begin{array}{l}(x-4y)(x+4y) = \\\\[2ex] =(x+4y)(x-4y) =\\\\[2ex] =x^2-(4y)^2=\\\\[2ex] = \\bm{x^2-16y^2}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"130\" width=\"204\" 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 2<\/h3>\n<p> \ub2e4\uc74c \uacf1\uc148\uc744 \uc81c\uacf1\uc758 \ucc28\uc774\ub85c \ud45c\ud604\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-f11abde1a676c9efe0dee6544ec7dd35_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\left(x^2+10\\right)\\left(x^2-10\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"177\" style=\"vertical-align: -7px;\"><\/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-ad159466aec4f0d240bd8d4c308f7abd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\left(4x-5\\right)\\left(4x+5\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"157\" 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-ce8c4004719f1aa6c92b21494efd621f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ \\left(8x^3+y^2\\right)\\left(8x^3-y^2\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"193\" style=\"vertical-align: -7px;\"><\/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-6aa36e48b667ea4743daf1da540430ff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ \\left(2x^3y+x^4y^2\\right)\\left(2x^3y-x^4y^2\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"248\" style=\"vertical-align: -7px;\"><\/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>\ud574\uacb0\ucc45 \ubcf4\uae30<\/strong> <\/div>\n<\/div>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-130cd5d346f482730ecc3333446e523f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\begin{array}{l}\\left(x^2+10\\right)\\left(x^2-10\\right) = \\\\[2ex] =\\left(x^2\\right)^2-10^2=\\\\[2ex] = \\bm{x^4-100}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"93\" width=\"208\" 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-789437ac865d440bbd7fdc8c3dcef649_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\begin{array}{l}\\left(4x-5\\right)\\left(4x+5\\right) = \\\\[2ex] =(4x)^2-5^2=\\\\[2ex] = \\bm{16x^2-25}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"89\" width=\"187\" 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-95f3d6fb4f7ec97adeefac0c98b129a8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ \\begin{array}{l}\\left(8x^3+y^2\\right)\\left(8x^3-y^2\\right) = \\\\[2ex] =\\left(8x^3\\right)^2-\\left(y^2\\right)^2=\\\\[2ex] = \\bm{64x^6-y^4}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"224\" 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-cd84ca693626bc77a4a19e0c45a00caf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ \\begin{array}{l}\\left(2x^3y+x^4y^2\\right)\\left(2x^3y-x^4y^2\\right) = \\\\[2ex] =\\left(2x^3y\\right)^2-\\left(x^4y^2\\right)^2 =\\\\[2ex] = \\bm{4x^6y^2-x^8y^4}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"279\" 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\uacfc \uac19\uc740 \uc8fc\ubaa9\ud560\ub9cc\ud55c \uc815\uccb4\uc131\uc744 \ud574\uacb0\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-92f6afda6cffbe29df833c7579880aef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\left(9x^3+\\sqrt{5x}\\right)\\left(9x^3-\\sqrt{5x}\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"23\" width=\"227\" style=\"vertical-align: -7px;\"><\/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-3bfc1a9172f021d35179b9df54d8a126_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\displaystyle \\left(\\frac{1}{2}x^2+\\frac{5}{3}x\\right)\\left(\\frac{1}{2}x^2-\\frac{5}{3}x\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"43\" width=\"231\" style=\"vertical-align: -17px;\"><\/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-2898ec593dbaadf26cda7de0359b147e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ \\left(6x^4+x^2+1\\right)\\left(6x^4-x^2-1\\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"255\" style=\"vertical-align: -7px;\"><\/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>\ud574\uacb0\ucc45 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> \uccab \ubc88\uc9f8 \uc8fc\ubaa9\ud560 \ub9cc\ud55c \ub4f1\uc2dd\uc744 \ud480\ub824\uba74 \uc81c\uacf1\uadfc\uc774 \ub2e8\uc21c\ud654\ub41c\ub2e4\ub294 \uc810\uc744 \uae30\uc5b5\ud574\uc57c \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-ab1362f27fa00986005f1065ad627537_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ \\begin{array}{l}\\left(9x^3+\\sqrt{5x}\\right)\\left(9x^3-\\sqrt{5x}\\right) = \\\\[2ex] =\\left(9x^3\\right)^2-\\left(\\sqrt{5x}\\right)^2=\\\\[2ex] = \\bm{81x^6-5x}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"94\" width=\"258\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \ucc28\uc774\uc5d0 \uc758\ud55c \ub450 \ubc88\uc9f8 \ud569\uc758 2\uac1c\uc758 \ub2e8\ud56d\uc2dd\uc740 \ubd84\uc218 \uacc4\uc218\ub97c \uac00\uc9c0\ubbc0\ub85c \ubd84\uc218\uc758 \uc18d\uc131\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774 \ubb38\uc81c\ub97c \ud480\uc5b4\uc57c \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-f326d1d0330f288f08c8cf6a27ba85e0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ \\begin{array}{l}\\displaystyle \\left(\\frac{1}{2}x^2+\\frac{5}{3}x\\right)\\left(\\frac{1}{2}x^2-\\frac{5}{3}x\\right) = \\\\[4ex] \\displaystyle =\\left(\\frac{1}{2}x^2\\right)^2-\\left(\\frac{5}{3}x\\right)^2=\\\\[4ex] \\displaystyle =\\frac{1^2}{2^2}x^4-\\frac{5^2}{3^2}x^2=\\\\[4ex]\\displaystyle = \\mathbf{\\frac{1}{4}}\\bm{x^4-}\\mathbf{\\frac{25}{9}}\\bm{x^2} \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"228\" width=\"263\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> \ub9c8\uc9c0\ub9c9\uc73c\ub85c, \ub9c8\uc9c0\ub9c9 \ub4f1\uc2dd\uc740 \uadf8 \uc548\uc5d0 \ub610 \ub2e4\ub978 \uc8fc\ubaa9\ud560\ub9cc\ud55c \uacf1(\ud569\uc758 \uc81c\uacf1)\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc57d\uac04 \ud2b9\ubcc4\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-ba1748a8a88df231365c5134f251038a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ \\begin{array}{l}\\left(6x^4+x^2+1\\right)\\left(6x^4-x^2-1\\right) = \\\\[2ex] = \\left(6x^4+\\left(x^2+1\\right)\\right)\\left(6x^4-\\left(x^2+1\\right)\\right)=\\\\[2ex]=\\left(6x^4\\right)^2-\\left(x^2+1\\right)^2=\\\\[2ex] =36x^8 - \\left(x^4+2x^2+1\\right)=\\\\[2ex] = \\bm{36x^8 - x^4-2x^2-1}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"167\" width=\"338\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\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 \ud569\uacc4\uc640 \ucc28\uc774\uc758 \uacf1\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc744 \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \uc774\ub7ec\ud55c \ub180\ub77c\uc6b4 \uc720\ud615\uc758 \uc544\uc774\ub374\ud2f0\ud2f0 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud55c \uc608\ub97c \ubcfc \uc218 \uc788\uc73c\uba70, \ub2e8\uacc4\ubcc4\ub85c \ud480\uc5b4\ub0b8 \uc5f0\uc2b5 \ubb38\uc81c\ub97c \ud1b5\ud574 \uc5f0\uc2b5\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \ud569\uacfc \ucc28\uc774\uc758 \uacf1\uc740 \ubb34\uc5c7\uc785\ub2c8\uae4c? \uc218\ud559\uc5d0\uc11c \ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uacf1\uc774\ub77c\ub294 \uac1c\ub150\uc740 \uc8fc\ubaa9\ud560\ub9cc\ud55c \ub3d9\uc77c\uc131 \ub610\ub294 \uc8fc\ubaa9\ud560 \ub9cc\ud55c \uacf1\uc774\ub77c\uace0\ub3c4 \ud558\ub294 \uc8fc\ubaa9\ud560\ub9cc\ud55c \ud3c9\ub4f1 \uc911 \ud558\ub098\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4. \ubcf4\ub2e4 \uc815\ud655\ud558\uac8c\ub294 \ucc28\uc774\uc5d0 \uc758\ud55c &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ko\/%ec%b0%a8%ec%9d%b4%ec%97%90-%ec%9d%98%ed%95%9c-%ed%95%a9%ec%9d%98-%ea%b3%b1%ec%97%90-%eb%8c%80%ed%95%9c-%ea%b3%b5%ec%8b%9d\/\"> <span class=\"screen-reader-text\">\ucc28\uc774\uc5d0 \uc758\ud55c \ud569\uc758 \uc0b0\ubb3c(\ub180\ub77c\uc6b4 \uc544\uc774\ub374\ud2f0\ud2f0)<\/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":[11],"tags":[],"class_list":["post-329","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"<!-- This site is optimized 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