boujours aidez moi svp c'est de la distributivité A= (-x+2)*3x B= -9(-9x-2) C=(-2x+2)*8 D=(8x-4)*5x merci

A = (-x + 2) × 3x
A = 3x (-x + 2)
A = -3x² + 6x

B = - 9 (-9x - 2)
B = 81x + 18

C = (-2x + 2) × 8
C = 8 (-2x + 2)
C = -16x + 16

D = (8x - 4) × 5x
D = 5x (8x - 4)
D = 40x² - 20x