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Sagot :

Bonsoir,

A= x²+7x

B= 100x² =80x

C= -8x² +1-x

D = -30x² +30x

E= -25x² +40x

F = 18x² -72x

G = -2x² +4x

H = 63x² -81x

Réponse:

A= x²+7x

B= 100x²+80x

C= -8x²+16x

D= -30x²+30x

E= -25x²+40x

F= 18x²-72x

G= -2x²+4x

H= 63x²-81x

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