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Sagot :

GGDU19

Bonsoir,

E=(-3+y)*9

 =-3*9+9y

E=9y-27

F=-6(2x-7)

 =-6*2x-6*(-7)

F=-12x+42

G=-8z(4-3z)

  =-8z*4-8z*(-3z)

G=24z²-32z

H=3y(-4+6y)

 =-4*3y+6y*3y

H=18y²-12y

I=11+2(x-6)+4(-3x-6)

=11+2x-12-12x-24

I=-10x-25

J=-2(x-5)-3(7-4x)

 =-2x+10-21+12x

J=10x-11

K=-7y-4(3y-6)+3+2(3y-7)

 =-7y-12y+24+3+6y-14

K=-13y+13

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