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Sagot :

GABI777

Réponse :

f(x)=2(3x-1)-4(5-8x)

f(x)= 6x - 2 - 20 + 32x

f(x)= 38x - 22

g(x)=(x+3) / 4 + (2x-1)/ 5

g(x)= 5x + 15 + 8x - 4

g(x)= 13x + 11

h(x)=(3x-8)² - (3x)²

h(x)= (3x-8-3x)(3x-8+3x)

h(x)=-8(6x - 8)

h(x)= -48x + 64

k(x)=2x(1-5x)-4x²

k(x)= 2x - 10x² - 4x²

k(x)= 2x -14x²

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