Bonsoir
Factoriser :
K = 7a²b-14ab²
K = 7ab(a-2b)
L = 25x²-5x
L = 5x(5x-1)
E = (1-2x)(5x+3)+(5x+3)(2x+3)
E = (5x+3)(1-2x+2x+3)
E = (5x+3)(1+3)
E = (5x+3)4
E = 4(5x+3)
F = (5x-6)(x-4)-(5x-6)(3-2x)
F = (5x-6)(x-4-(3-2x))
F = (5x-6)(x-4-3+2x)
F = (5x-6)(3x-4-3)
F = (5x-6)(3x-7)
G = (3x-4)(1-2x)-(1-2x)
G = (1-2x)(3x-4-1)
G = (1-2x)(3x-5)
H = 25-c²
H = 5²-c²
H = (5-c)(5+c)
Bonne soirée.
