Réponse :
Explications étape par étape
Bonjour
Factoriser :
A = (2x + 3)(5x + 5) + (2x + 3)(x - 3)
A = (2x + 3)(5x + 5 + x - 3)
A = (2x + 3)(6x + 2)
A = (2x + 3) * 2(3x + 1)
A = 2(2x + 3)(3x + 1)
B = (x - 3)(6x - 4) - (x - 3)(2x + 3)
B = (x - 3)(6x - 4 - 2x - 3)
B = (x - 3)(4x - 7)
C = (3x - 1)(4x + 5) + (3x - 1)^2
C = (3x - 1)(4x + 5 + 3x - 1)
C = (3x - 1)(7x + 4)
D = 100x^2 - 81
D = (10x)^2 - 9^2
D = (10x - 9)(20x + 9)
E = 25x^2 - 36
E = (5x)^2 - 6^2
E = (5x - 6)(5x + 6)
