Réponse:
A= (-3) × (x + 5)
A= -3 × x (-3) x 5
A= -3x -15
B= -4 (2 + t)
B= -4 × 2 -4 × t
B= -8 -4t
C= -3(7 + 5y)
C= -3 × 7 -3 × 5y
C= -21 - 15y
D= -2 × (x - 8)
D= -2 × x -2 × (-8)
D= -2x + 16
E= -5 (3 - 2w)
E= -5 × 3 -5 × (-2w)
E= -15 + 10w
F= -x (5x - 3)
F= -x × 5x - x × (-3)
F= -5x + 3x
