Bonjour,
Développer:
A= 49x
B= 28x
C= 40x+70+7x+6= 47x+76
D= 30x+15+7= 30x+22
E= -7x-36x-16= - 43x-16
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Bonjour,
Développer:
A= 49x
B= 28x
C= 40x+70+7x+6= 47x+76
D= 30x+15+7= 30x+22
E= -7x-36x-16= - 43x-16