Activité 1 :
Retrouver les expressions qui sont factorisées :
A = (2x + 1X1 + x)
F = (1 + 3x)(x-2) + 1
B = (x + 3) + (1 - 3x)
G = 4x - 15
C = (x - 4) - 313 + 2x)
H = (8x + 4)(2x + 1)(1 + x)
D = 2(1 + x)
L = (x + 15)
E = 3(5 + x)(32 + 5x)
J = 4 - (x - 5)(3x - 5)
K= (x - 4) - 3(5 + 2x)
L = (6 + x)2 - 412 + 3x)
M = (2+2)(3 - 4x)
N = x(x - 2)
O = (2x + 1) (1 + x)