Bonjours pouvez vous m'aider svp ?Factoriser les expressions suivantes :
A = (3 x – 1) (x – 8) + (2 x +4) (x - 8)
B = (x - 5) (x + 2) - (x – 5) (3 x + 1)
C = 7 x2 – 21 x D = 5 x2 + 15 x
E = 4 x2 + x
F = (x + 2) (x + 5) - 3 (x + 5)
G= x (2 x + 3)- 7 (2 x+3)
H = 2 x + 3 + 5 x (2 x + 3)
I = 2 x + 1 + 5 x (2 x + 1) – 3 x (2 x + 1)
J = (2 x – 5)2 - (2 x – 5) (x + 2)
K = (x - 8) + x - 8
