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Exercice 1: Reconnaître les expressions factorisées
A = (2x + 1)(1+x)
B = (x+3) + (1 - 3x)
C=(x-4) (3 + 2x)
D = 2(1+x)
E = 3(5 + x)
F = (1 + 3x)(x-2) + 1
G=4x-15
H = -(2x + 1)(1+x)
1 = (x +15)²
J=4-(x - 5)(3x - 5)
K=(x-4)-5
L=x-4(2+3x)
M = (2+x)(3-4x)
N = x(x-2)
0 = (2x + 1)² (1+x)