Réponse:
E= 5x(2x-6)
E= 10x²-30x
E= x(10x-30)
D= 3(x+4)
D= 3x+12
H= (x+3)+(-2x-4)
H= x+3-2x-4
H= -x-1
F= -(3x-7)
F= -3x+7
G= -(-x+3)
G= x-3
I= -9x(2x+10)-(-18x²-90x)
I= -18x²-90x+18x²+90x
I=0
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Réponse:
E= 5x(2x-6)
E= 10x²-30x
E= x(10x-30)
D= 3(x+4)
D= 3x+12
H= (x+3)+(-2x-4)
H= x+3-2x-4
H= -x-1
F= -(3x-7)
F= -3x+7
G= -(-x+3)
G= x-3
I= -9x(2x+10)-(-18x²-90x)
I= -18x²-90x+18x²+90x
I=0