{"id":65,"date":"2023-09-17T07:19:50","date_gmt":"2023-09-17T07:19:50","guid":{"rendered":"https:\/\/mathority.org\/pt\/trinomio-quadrado-perfeito\/"},"modified":"2023-09-17T07:19:50","modified_gmt":"2023-09-17T07:19:50","slug":"trinomio-quadrado-perfeito","status":"publish","type":"post","link":"https:\/\/mathority.org\/pt\/trinomio-quadrado-perfeito\/","title":{"rendered":"Trin\u00f4mio quadrado perfeito"},"content":{"rendered":"<p>Nesta p\u00e1gina explicamos o que \u00e9 um trin\u00f4mio quadrado perfeito e como ele \u00e9 explicado. Al\u00e9m disso, voc\u00ea poder\u00e1 ver v\u00e1rios exemplos e praticar passo a passo exerc\u00edcios de trin\u00f4mio quadrado perfeito. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%C2%BFQue-es-un-trinomio-cuadrado-perfecto\"><\/span> O que \u00e9 um trin\u00f4mio quadrado perfeito?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Obviamente, antes de ver o significado de um trin\u00f4mio quadrado perfeito, voc\u00ea precisa saber o que s\u00e3o <a href=\"https:\/\/mathority.org\/pt\/trinomio\/\"><strong><span style=\"text-decoration: underline;\">trin\u00f4mios<\/span><\/strong><\/a> , ent\u00e3o recomendo dar uma olhada nesta p\u00e1gina vinculada (onde \u00e9 explicado em detalhes) antes de continuar.<\/p>\n<p> Portanto, a defini\u00e7\u00e3o de um trin\u00f4mio quadrado perfeito \u00e9 a seguinte:<\/p>\n<p> Em matem\u00e1tica, um <strong>trin\u00f4mio quadrado perfeito<\/strong> , tamb\u00e9m conhecido como <strong>TCP<\/strong> , \u00e9 o trin\u00f4mio obtido pela quadratura de um bin\u00f4mio.<\/p>\n<p> Portanto, um trin\u00f4mio quadrado perfeito consiste em um polin\u00f4mio com dois quadrados perfeitos e outro termo que \u00e9 o produto duplo das bases desses quadrados. <\/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\/trinome-carre-parfait.png\" alt=\"trin\u00f4mio quadrado perfeito\" class=\"wp-image-2553\" width=\"299\" height=\"300\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p> Como voc\u00ea pode ver nas duas f\u00f3rmulas acima, o trin\u00f4mio quadrado perfeito \u00e9 obtido a partir de duas identidades not\u00e1veis (ou produtos not\u00e1veis), por isso \u00e9 t\u00e3o importante. Especificamente, um trin\u00f4mio quadrado perfeito \u00e9 encontrado ao resolver o <a href=\"https:\/\/mathority.org\/pt\/quadrado-de-uma-soma-ou-soma-ao-quadrado\/\"><strong><span style=\"text-decoration: underline;\">quadrado de uma adi\u00e7\u00e3o<\/span><\/strong><\/a> ou o <a href=\"https:\/\/mathority.org\/pt\/quadrado-de-uma-diferenca-ou-subtracao\/\"><strong><span style=\"text-decoration: underline;\">quadrado de uma subtra\u00e7\u00e3o<\/span><\/strong><\/a> . <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejemplos-de-trinomio-cuadrado-perfecto\"><\/span> Exemplos de trin\u00f4mios quadrados perfeitos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Para finalizar a compreens\u00e3o do conceito de trin\u00f4mio quadrado perfeito, explicaremos 2 exemplos passo a passo:<\/p>\n<h3 class=\"wp-block-heading\"> Exemplo 1<\/h3>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7b1e801a4cc4d2bf8c8691b286cba38a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2+6x+9\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"89\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p> Este exemplo \u00e9 um trin\u00f4mio quadrado perfeito porque em sua express\u00e3o alg\u00e9brica existem dois quadrados perfeitos (ou seja, eles t\u00eam uma raiz quadrada exata), pois<\/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-76e092d71026e8d64e9e3fc6857554cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"17\" style=\"vertical-align: 0px;\"><\/p>\n<p> e 9 s\u00e3o equivalentes a<\/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> e 3 elevados respectivamente \u00e0 pot\u00eancia de dois:<\/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-8bf33d0bd55e20552fca7aa83cfb2aff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(x)^2 = x^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"71\" 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-0b43202294911c3ca13c5b689e92bbcc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(3)^2 = 9\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"62\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> E mais, o \u00faltimo termo restante do trin\u00f4mio<\/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-7c74faf95634edd5ba7ba54895c9aea3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(6x)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"31\" style=\"vertical-align: -5px;\"><\/p>\n<p> \u00c9 obtido multiplicando as bases dos dois quadrados anteriores entre si e por 2:<\/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-96afb151877bff6626333e94ae128d28_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2\\cdot x \\cdot 3 = 6x\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"96\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Portanto, toda a identidade not\u00e1vel completa neste exerc\u00edcio seria:<\/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-4d0bc4a13d074a1a857517e78a61177d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(x+3)^2 =x^2+6x+9\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"174\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h3 class=\"wp-block-heading\"> Exemplo 2<\/h3>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6211ea82c428a6fd5c1086f8cc698e7c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"16x^2-40x+25\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"123\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p> Este outro exemplo tamb\u00e9m \u00e9 um trin\u00f4mio quadrado perfeito porque as 3 condi\u00e7\u00f5es necess\u00e1rias s\u00e3o atendidas: dois termos correspondem a dois quadrados perfeitos, e outro termo \u00e9 o resultado da multiplica\u00e7\u00e3o das bases desses quadrados entre si e por 2. <\/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-f90e6e2af62292eed9f4abcff9b82065_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(4x)^2 = 16x^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"98\" 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-1818354159095d6f8aec5f0d296d75ab_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(5)^2 = 25\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"70\" 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-c22c56e139fa671e2b3afa466e878ac3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2\\cdot 4x \\cdot 5 =40x\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"114\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Neste caso o trin\u00f4mio quadrado perfeito tem um mon\u00f4mio negativo, correspondendo portanto ao desenvolvimento da igualdade not\u00e1vel de uma diferen\u00e7a quadrada: <\/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-d269d77a8917ed4e62d32585cccdaf67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(4x-5)^2 = 16x^2-40x+25\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"217\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Como-factorizar-un-trinomio-cuadrado-perfecto\"><\/span> Como fatorar um trin\u00f4mio quadrado perfeito<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Na \u00e1lgebra, um problema muito comum \u00e9 fatorar um trin\u00f4mio quadrado perfeito (PCT). Caso voc\u00ea n\u00e3o saiba o que isso significa, fatorar um polin\u00f4mio significa transformar sua express\u00e3o em um produto de fatores.<\/p>\n<p> Assim, para fatorar este tipo de trin\u00f4mio alg\u00e9brico, devem ser respeitadas as seguintes regras:<\/p>\n<ol style=\"color:#ff5733; font-weight: bold;\">\n<li style=\"margin-bottom:10px\"> <span style=\"color:#000000;font-weight: normal;\">O trin\u00f4mio deve ter dois quadrados perfeitos, que chamaremos\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-062e6b90a0da4787460d4a5d0845624c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"a^2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"16\" style=\"vertical-align: 0px;\"><\/p>\n<p><\/span> E<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c3a795dbae63ac6ae2905fa73468f6dc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"b^2.\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"19\" style=\"vertical-align: 0px;\"><\/p>\n<\/li>\n<li style=\"margin-bottom:10px\"> <span style=\"color:#000000;font-weight: normal;\">O terceiro termo restante do trin\u00f4mio deve ser igual ao duplo produto das bases dos dois quadrados perfeitos, o que corresponde matematicamente \u00e0 express\u00e3o\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f954fff3b2e11e573917f813e2072c36_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2\\cdot a \\cdot b.\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"56\" style=\"vertical-align: 0px;\"><\/p>\n<p><\/span><\/li>\n<li> <span style=\"color:#000000;font-weight: normal;\">O trin\u00f4mio fatorado ser\u00e1\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ef98ef741811c17cd99e75e5f848ea69_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"59\" style=\"vertical-align: -5px;\"><\/p>\n<p><\/span> se todos os termos do trin\u00f4mio quadrado perfeito forem positivos, caso contr\u00e1rio, se o produto duplo das bases dos quadrados tiver sinal negativo, o trin\u00f4mio fatorado ser\u00e1<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9a0944763685ffb33e248d09356088f1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a-b)^2.\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"63\" style=\"vertical-align: -5px;\"><\/p>\n<\/li>\n<\/ol>\n<p> Para finalizar o entendimento do procedimento, resolveremos passo a passo um exerc\u00edcio:<\/p>\n<ul>\n<li> Fatore o seguinte trin\u00f4mio quadrado perfeito:<\/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-7e8d50aa915906e1db203351b7980485_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2-12x+36\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"107\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p> A primeira coisa que precisamos fazer \u00e9 identificar se o trin\u00f4mio possui dois elementos que s\u00e3o quadrados perfeitos, ou seja, se sua raiz quadrada n\u00e3o d\u00e1 um n\u00famero decimal. Neste problema<\/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-76e092d71026e8d64e9e3fc6857554cc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"17\" style=\"vertical-align: 0px;\"><\/p>\n<p> \u00e9 o quadrado da vari\u00e1vel<\/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> e 36 \u00e9 o quadrado de 6:<\/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-3f4b410d5d5d88f8baad849771198e12_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{x^2} = x\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"65\" style=\"vertical-align: -1px;\"><\/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-608b0e90846f8362a70324654d4db63c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{36} = 6\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"64\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p> O trin\u00f4mio, portanto, tem dois quadrados perfeitos.<\/p>\n<p> Em segundo lugar, devemos verificar se o termo interm\u00e9dio \u00e9 equivalente ao duplo produto das duas ra\u00edzes calculado no passo anterior:<\/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-71d97c4b717e330721cd1cf0682b8c97_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2 \\cdot x \\cdot 6 = 12x\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"105\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Esta regra tamb\u00e9m \u00e9 respeitada.<\/p>\n<p> Ent\u00e3o todas as condi\u00e7\u00f5es s\u00e3o atendidas. Portanto, o trin\u00f4mio quadrado perfeito fatorado \u00e9 o bin\u00f4mio formado pelas duas ra\u00edzes encontradas (<\/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-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> e o n\u00famero 6) ao quadrado:<\/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-dc977b1e7c6ea74eb9ea936a143726ce_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2-12x+36=(x-6)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"192\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> Como o termo intermedi\u00e1rio \u00e9 negativo, devemos tamb\u00e9m colocar um sinal de menos entre par\u00eanteses. Por outro lado, se fosse positivo ter\u00edamos que somar uma soma:<\/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-1f434b54a39dd1e4a96ca539157b6940_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2+12x+36=(x+6)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"192\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> Logicamente, fatorar \u00e9 um procedimento complicado ent\u00e3o, al\u00e9m de tentar fazer o exerc\u00edcio abaixo, recomendo olhar estes <a href=\"https:\/\/mathority.org\/pt\"><strong><span style=\"text-decoration: underline;\">exemplos de fatora\u00e7\u00e3o de polin\u00f4mios<\/span><\/strong><\/a> . Neste link tamb\u00e9m explicamos um m\u00e9todo que \u00e9 usado n\u00e3o apenas para fatorar trin\u00f4mios, mas tamb\u00e9m qualquer tipo de polin\u00f4mio, e com a mesma rapidez. <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ejercicios-resueltos-del-trinomio-cuadrado-perfecto\"><\/span> Exerc\u00edcios resolvidos do trin\u00f4mio quadrado perfeito<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> Transforme os seguintes trin\u00f4mios em bin\u00f4mios quadrados aplicando a f\u00f3rmula correspondente: <\/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-24da9e6b626358d86573fa594e257d56_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ x^2+8x+16\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"124\" 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-3ba70765846ab6cc6ae2a92f48e80f42_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ x^2-14x+49\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"132\" 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-2998c54e820c876cf4f68b9d0da3452f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ x^4-20x^2+100\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"149\" 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-cc94c15e3ac37d4317034b868e2417b5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ 81x^2+90x+25\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"150\" 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-2a86aad0e5cf04dc75cb5d72f58b7e66_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{E)} \\ 64x^4-176x+121\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"166\" 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>Veja a solu\u00e7\u00e3o<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Para converter um trin\u00f4mio quadrado perfeito na pot\u00eancia de um bin\u00f4mio quadrado, voc\u00ea deve usar as f\u00f3rmulas para as identidades not\u00e1veis do quadrado de uma soma e do quadrado de uma diferen\u00e7a, que s\u00e3o: <\/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-e10c023cd8ec08f93eff788766b665e3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a+b)^2 = a^2+2ab+b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"184\" 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-10c3b119d667d53a970a4b8ba0855d87_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(a-b)^2 = a^2-2ab+b^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"184\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Ainda: <\/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-f3bbb429ca019a3aba33692ba6645591_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{A)} \\ x^2+8x+16 = (x+4)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"209\" 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-0b824bfdd5de90db82671240d4022bcd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{B)} \\ x^2-14x+49 = (x-7)^2\" 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-b27ce03b83f25ff8d201549c040d15c8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{C)} \\ x^4-20x^2+100 = (x^2-10)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"251\" 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-446da3b6767832c089fb77d9907ea2f8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{D)} \\ 81x^2+90x+25 = (9x+5)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"245\" 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-2e2042bc291d956a4dda9d9bcc51eb81_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{E)} \\ 64x^4-176x+121 =\\left( 8x^2-11)^2\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"279\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<p class=\"has-text-align-center\"> \u2b07\u2b07\u2b07 N\u00e3o se esque\u00e7a que voc\u00ea pode nos escrever todas as suas d\u00favidas abaixo nos coment\u00e1rios! \u2b07\u2b07\u2b07<\/p>\n<div id=\"ezoic-pub-ad-placeholder-176\" data-inserter-version=\"-1\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Nesta p\u00e1gina explicamos o que \u00e9 um trin\u00f4mio quadrado perfeito e como ele \u00e9 explicado. Al\u00e9m disso, voc\u00ea poder\u00e1 ver v\u00e1rios exemplos e praticar passo a passo exerc\u00edcios de trin\u00f4mio quadrado perfeito. O que \u00e9 um trin\u00f4mio quadrado perfeito? Obviamente, antes de ver o significado de um trin\u00f4mio quadrado perfeito, voc\u00ea precisa saber o que &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/pt\/trinomio-quadrado-perfeito\/\"> <span class=\"screen-reader-text\">Trin\u00f4mio quadrado perfeito<\/span> Leia mais &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":[26],"tags":[],"class_list":["post-65","post","type-post","status-publish","format-standard","hentry","category-trinomios"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u25b7 O que \u00e9 um trin\u00f4mio quadrado perfeito? 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