factoriser (6x + 1) ² - (7 + 4x) ² URGENT
Mathématiques
clems111299
Question
factoriser (6x + 1) ² - (7 + 4x) ² URGENT
1 Réponse
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1. Réponse droopette
(6x + 1) ² - (7 + 4x) ²
=(6x+1-7-4x)(6x+1+7+4x)
=(2x-6)(10x+8)
=2(x+3)2(5x+4)
=4(x+3)(5x+4)