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Sagot :

AUSTRALIEN

Réponse :

A = x(5-x)

B = x(7-x)

C = (x+3)(2+x+5) = (x+3)(x+7)

D = (x-4)(x-4-x-1) = (x-4)(-5) = -5(x-4)

E = (3-x)(3+x)

F = (x+4-2x-3)(x+4+2x+3)= (-x+1)(3x+7)

Explications étape par étape :

INEQUATION

Bonsoir,

Factoriser:

A= x(5-x)= -x(x-5)

B= x(7-x)= -x(x-7)

C= (x+3)(2+x+5)= (x+3)(x+7)

D= (x-4)(x-4-x-1)= (x-4)(-5) ⇔ -5(x-4)

E= (3-x)(3+x)= -(x-3)(x+3)

E= (x+4-2x-3)(x+4+2x+3)= (-x+1)(3x+7)= -(x-1)(3x+7)

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