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Sagot :

Réponse :

A=15y²+25y

=5y(3y+5)

B=2(3-x)+y*(3-x)

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

=(3-x)(2+y)

C=(x+4)(2y+7)+(y-7)(x+4)

=(x+4)((2y+7)+(y-7)

=(x+4)(2y+7+y-7)

=(x+4)(3y)

=3y(x+4)

ELISADEMAUBOURGUET

A= 5y * ( 3y + 5)

B = (3-x) * (2+ y )

C = (x+4)* (2y+7+y-7) = (x+4)*3y

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