Bonsoir,
Développer,
3(5+x)= 15+3x
7(x-8)= 7x-56
10(y+9)= 10y+90
x(6-x)= 6x-x²
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Bonsoir,
Développer,
3(5+x)= 15+3x
7(x-8)= 7x-56
10(y+9)= 10y+90
x(6-x)= 6x-x²