Bonsoir,
Factoriser:
A = (2x - 1)(3x + 1) + (2x - 1)(5 - 2x)
A = (2x - 1)(3x + 1 + (5 - 2x)
A = (2x - 1)(3x + 1 + 5 - 2x)
A = (2x - 1)(x + 6)
B = (x - 3)(2x + 2) + x(x - 3)
B = (x - 3)(2x + 2 + x)
B = (x - 3)(3x + 2)
C = 2(x - 1) - (x - 1)(3x + 3)
C = (x - 1)(2 - (3x + 3))
C = (x - 1)(2 - 3x - 3)
C = (x - 1)(-3x - 1)
D = (4x + 3)(2 - 3x) - (2 - 3x)(x - 1)
D = (2 - 3x)(4x + 3 - (x - 1))
D = (2 - 3x)(4x + 3 - x + 1)
D = (2 - 3x)(3x + 4)
E = incompréhensible
F = incompréhensible
Bonne soirée.