Réponse :
bonjour
Explications étape par étape :
A = 2(x + 8)
A = (2 × x) + (2 × 8)
A = 2x + 16
B = 3 (x - 2)
B = (3 × x) - ( 3 × 2 )
B = 3x - 6
C = -4 ( 8 + 2x )
C = -4 × 8 + (-4) × 2x
C = -32 + (-8x)
C = -32 - 8x
D = -3 ( x -7 )
D = -3 × x - (-3) × 7
D = -3x - (- 21 )
D = -3x + 21
E = -4x ( 3x - 2)
E = -4x × 3x - (-4x) × 2
E = -12x² - (-8x)
E = -12x² + 8x
F = (5x - 1 ) × x
F = (x × 5x) - (x × 1)
F = 5x² - x
bonne aprem
