bonjour pourriez vous maidez pour lexercice n 10 S.V.P merci

A = 8x + 12
A = 4 (2x + 3)

B = 15x + 10
B = 5 (3x + 2)

C = 30x - 12
C = 6 (5x - 2)

D = - 7x - 28
D = - 7 (x + 4)

E = 3x² + 6x
E = 3x (x + 2)

F = 8x - 6x²
F = 2x (4 + 3x)

G = 16x² + 20x³
G = 4x² (4 + 5x)

H = 9x³ + 12x²
H = 3x² (3x + 4)