Exercice 4 Factoriser les expressions suivantes :

A = 6x + 18 B = 5x - 9x²

C = 3x + 9x²

D = 3(x + 8) + 5(x + 8)

E = x (2x + 3) - 7 (2x + 3)

F = (3x - 1) (x - 8) - 2x (x-8)

G = (3x + 2) (x-4)-(3x - 5) (3x + 2)

H = (x - 1)² + 2(x - 1)

I = t²-t (2t - 3)

J= t - 3-5t (t - 3)
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