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Sagot :

bonjour

A=8+4(x-3)

8+4x-12

4x-4

B=1-3(x+2)

1-3x-6

-3x-5

C=3(x+3)-2(3x-1)

3x+9-6x+2

-3x+11

D=-4(x+1)+x(2-x)

-4x-4+2x-x²

-x²-2x-4

2)A=8+4(3-3)=8+4*(0)=8

B=1-3(3+2)=1-3*(5)=1-15=-14

C=3(3+3)-2((3*3)-1)=3*6-2*(9-1)=18-16=2

D=-4(3+1)+3(2-3)=-4*4+3*-1=-16-3=-19

*=multiplier

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