Sagot :
Bonjour,
F = x (x + 2)
F = x * x + x * 2
F = x² + 2x
G = t (t - 6)
G = t * t - 6 * t
G = t² - 6t
H = 3y (y + 5)
H = 3y * y + 3y * 5
H = 3y² + 15y
I = 6x (2x - 7)
I = 6x * 2x - 7 * 6x
I = 12x² - 42x
J = (35 + 2) * 8s
J = 8s * 35 + 8s * 2
J = 280s + 16s
J = 296s
K = -8z (4 - 3)
K = -8z * 1
K = -8z