Bonsoir,
Développer les expressions suivantes :
A = 3 (-5x + 4)
A = - 15x + 12
B = 2y (7y - 3)
B = 14y² - 6y
C = -6 (3x + 1)
C = - 18x - 6
D = -7y (-4y + 3)
D = 28y² - 21y
Factoriser les expressions suivantes :
E = 17y² - 34y
E = 17y (y - 2)
F = 25m + 15
F= 5 (5m + 3)
G = 6t² + 24t - 60
G = 6 (t² + 4t - 10)
H = 2y (y - 5) + 7 (y - 5)
H = (y - 5) (2y + 7)
