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Sagot :

Réponse :

salut ;)

Explications étape par étape

factoriser :

G= 4x²-9 - (2x-3)²

= (2x-3)(2x+3) - (2x-3)(2x-3)

= (2x-3)(2x+3-2x-3)

= (2x-3)(0)

= 0

F= -(2x+5)²+1

= 1² - (2x+5)²

= (1-2x-5)(1+2x+5)

= (-6-2x)(6+2x)

H= -x²+2x-1

= ( -x - 1)²

E= (2x-3)²+(2x-3)(x+1)

= (2x-3)(2x-3+x+1)

= (2x-3)(3x-2)

bonne chance :)

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