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Sagot :

CHUITROPPARFAITE

Réponse:

A=(2x+1) (1+x)

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

C=(x-8)-(2x-4)(5x-2)(5x+y 3)(2. y-1)

D=35 x²+(-49+25)x-35

E=8x²-26 x+15

F=18x--²6x+2x ²+4x-5x-10

LILYA004

Réponse:

A=4y(9y+1)

B=(2y+5)(7+5-7y)

=(2y+5)(12-7y)

C=(t-2)(4+5y-7y-1)

=(t-2)(3-2y)

D=(x²-7²)

(x-7)(x+7)

E=(x-5)²-9²

=(x-5-9)(x-5+9)

=(x-14)(x+4)

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