Pouvez-vous m’aidez pour l’exercice 5

Bonjour,

je note * le signe de la multiplication.

A = 6x = 6 * x

B = y²

C = 5t + 9 = 5 * t + 9

D = 1z³ = z * z * z

E = 7 abc = 7 * a * b * c

F = 3x + 4y = 3 * x + 4 * y

G = 4 (x+3) = 4 * (x+3)

H = y² (x+2) = y² * (x+2)

I = y (2t+6) = y * (2 * t + 6)

J = (r+7) (r-5) = (r+7) * (r-5)

K = 5z(3u+1) = 5 * z * (3 * u + 1)

L = 3x² (7x -2y) = 3 * x² * (7 * x - 2 * y)