Réponse :
EXERCICE 1
A = 5x * 9 = 45x
B = 8 * 8x = 64x
C = - 4x + 8 + 10 * (-3x - 6) = -4x + 8 - 30x - 60 = - 34x - 52
D = (8x + 1) * 9 - 2x = 72x + 9 - 2x = 70x + 9
E = 9 + (9x + 1) * 10 = 9 + 90x + 10 = 90x + 19
Explications étape par étape :
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Réponse :
EXERCICE 1
A = 5x * 9 = 45x
B = 8 * 8x = 64x
C = - 4x + 8 + 10 * (-3x - 6) = -4x + 8 - 30x - 60 = - 34x - 52
D = (8x + 1) * 9 - 2x = 72x + 9 - 2x = 70x + 9
E = 9 + (9x + 1) * 10 = 9 + 90x + 10 = 90x + 19
Explications étape par étape :