Bonjour, Factoriser l’expression suivante : A=2a-6 <script defer crossorigin="anonymous" integrity="sha384-X/XCfMm41VSsqRNQgDerQczD69XqmjOOOwYQvr/uuC+j4OPoNhVgjdGFwhvN02Ja" onload="katex.render(this.parentNode.innerText, this.parentNode, {"fleqn":true,"leqno":true,"output":"htmlAndMathml","throwOnError":true,"errorColor":"#cc0000","minRuleThickness":0.05,"maxSize":10,"maxExpand":1000,"macros":{},"colorIsTextColor":false,"displayMode":true})" src="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.js"> B = (3x – 5)2 – 4 <script defer crossorigin="anonymous" integrity="sha384-X/XCfMm41VSsqRNQgDerQczD69XqmjOOOwYQvr/uuC+j4OPoNhVgjdGFwhvN02Ja" onload="katex.render(this.parentNode.innerText, this.parentNode, {"fleqn":true,"leqno":true,"output":"htmlAndMathml","throwOnError":true,"errorColor":"#cc0000","minRuleThickness":0.05,"maxSize":10,"maxExpand":1000,"macros":{},"colorIsTextColor":false,"displayMode":true})" src="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.js"> La solution doit être donnée sous la forme la plus factorisée possible par un nombre entier. Merci d'avance,

Bonjour, A=2a−6 A = 2 (a - 3)<script defer crossorigin="anonymous" integrity="sha384-X/XCfMm41VSsqRNQgDerQczD69XqmjOOOwYQvr/uuC+j4OPoNhVgjdGFwhvN02Ja" onload="katex.render(this.parentNode.innerText, this.parentNode, {"fleqn":true,"leqno":true,"output":"htmlAndMathml","throwOnError":true,"errorColor":"#cc0000","minRuleThickness":0.05,"maxSize":10,"maxExpand":1000,"macros":{},"colorIsTextColor":false,"displayMode":false})" src="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.js"> car 2⋅a =2a et 2⋅-3 = -6 B=(3x–5)2–4 B = 6x-10-4<script defer crossorigin="anonymous" integrity="sha384-X/XCfMm41VSsqRNQgDerQczD69XqmjOOOwYQvr/uuC+j4OPoNhVgjdGFwhvN02Ja" onload="katex.render(this.parentNode.innerText, this.parentNode, {"fleqn":true,"leqno":true,"output":"htmlAndMathml","throwOnError":true,"errorColor":"#cc0000","minRuleThickness":0.05,"maxSize":10,"maxExpand":1000,"macros":{},"colorIsTextColor":false,"displayMode":false})" src="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.js"> B = 6x-14 <script defer crossorigin="anonymous" integrity="sha384-X/XCfMm41VSsqRNQgDerQczD69XqmjOOOwYQvr/uuC+j4OPoNhVgjdGFwhvN02Ja" onload="katex.render(this.parentNode.innerText, this.parentNode, {"fleqn":true,"leqno":true,"output":"htmlAndMathml","throwOnError":true,"errorColor":"#cc0000","minRuleThickness":0.05,"maxSize":10,"maxExpand":1000,"macros":{},"colorIsTextColor":false,"displayMode":false})" src="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.js"> B =2(3x-7)<script defer crossorigin="anonymous" integrity="sha384-X/XCfMm41VSsqRNQgDerQczD69XqmjOOOwYQvr/uuC+j4OPoNhVgjdGFwhvN02Ja" onload="katex.render(this.parentNode.innerText, this.parentNode, {"fleqn":true,"leqno":true,"output":"htmlAndMathml","throwOnError":true,"errorColor":"#cc0000","minRuleThickness":0.05,"maxSize":10,"maxExpand":1000,"macros":{},"colorIsTextColor":false,"displayMode":false})" src="https://cdn.jsdelivr.net/npm/katex@0.16.0/dist/katex.min.js">

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Factoriser une expression

HalloweenRevision

Bonjour,
Factoriser l’expression suivante :
A=2a-6
B = (3x – 5)2 – 4
La solution doit être donnée sous la forme la plus factorisée possible par un nombre entier.
Merci d'avance,

Nads

Bonjour,

A=2a−6

A = 2 (a - 3) car 2⋅a =2a et 2⋅-3 = -6

B=(3x–5)2–4

B = 6x-10-4
B = 6x-14
B =2(3x-7)