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Sagot :

VINS

bonsoir

A =  - 16 x + 72

b =  x² - 3 x + 2 x - 6 = x² - x - 6

C = - 12 x² + 3 x + 28 x - 7 =  - 12 x² + 31 x - 7

D = 15 x² - 6 x - 5 x + 2 =  15 x² - 11 x + 2

CHRYSTINE

bonsoir

A=8(-2x+9)=-16x+72

B=(x+2)(x-3)

=x²-3x+2x-6

=x²-x-6

C=(-3x+7)(4x-1)

-12x²+3x+28x-7

12x²+31x-7

D=(-3x+1)(-5x+2)

+15x²-6x-5x+2

15x²-11x+2

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