Réponse:
Bonjour
A = 8y + 24
B = -24y + 4y2
C = 2y2 + 16
D = -3y2 -3y + 21
E = 3 + 10y + 5
= 10y + 8
F = 5y - 10 - 3y + 15
= 2y + 5
