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Sagot :

Réponse :

Explications étape par étape :

A = 4x x 2 = 8x

B = 8 x 9x = 72x

C = -8 + (5x-1)x10 = -8 + 50x - 10 = 50x-18

D = -6x + 4 (-10x-6) = -6x - 40x - 24 = -46x-24

E = (4x-6)x7 - x + 6 = 28x -42 - x + 6 = 27x -36

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