Salut je doit factoriser 3 expression merci de m'aider (x-1)(x+3)-2(x-1)(x-2). 2x(x-4)+(x-5)(4-x).... Pergunta de ideia deleynouchou

January 2021 1 59 Report

Salut je doit factoriser 3 expression merci de m'aider
(x-1)(x+3)-2(x-1)(x-2).
2x(x-4)+(x-5)(4-x).
4x^2-(x-3)^2.

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laurance (x-1)(x+3)-2(x-1)(x-2). =(x-1)(x+3-2(x-2))=(x-1)(-x+7)
2x(x-4)+(x-5)(4-x). = (4-x)(-2x+(x-5)=(4-x)(-x-5)
4x^2-(x-3)^2. =(2x)²-(x-3)²=(2x+x-3)(2x-x+3)=(3x-3)(x+3)

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leynouchou Merci beaucoup

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