Réponse :
A = 5(x+2) = 5x + 5×2 = 5x + 10
B = 10(t-3) = 10t - 10 × 3 = 10t - 30
C = 3z(2z-10) = 3z × 2z - 3z × 10 = 6x² - 30z
D = -4x(x-7) = -3x × x - 4x × 7 = 3x² - 28x
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Réponse :
A = 5(x+2) = 5x + 5×2 = 5x + 10
B = 10(t-3) = 10t - 10 × 3 = 10t - 30
C = 3z(2z-10) = 3z × 2z - 3z × 10 = 6x² - 30z
D = -4x(x-7) = -3x × x - 4x × 7 = 3x² - 28x