Réponse :
28) a. 4 x (x + 5) = 4x + 20
b. 3 x (y + 6) = 3y + 18
c. 5 x (z + t) = 5z + 5t
d. 2 x (u - 8) = 2u - 16
e. 8(2v - 1) = 16v - 8
f. w(w - 5) = w² - 5w
Bonjour,
AD = 3(x+5)
AD = x+5+x+5+x+5
AD = 3x +(3*5)
