Réponse :
Explications étape par étape
Bonjour
A = 7x + 14
A = 7 * x + 7 * 2
A = 7(x + 2)
B = 15x - 25
B = 5 * 3x - 5 * 5
B = 5(3x - 5)
C = 6x^2 + 4x
C = 2x * 3x + 2x * 2
C = 2x(3x + 2)
D = (5x + 3)(x + 7) + (5x + 3)(3x - 2)
D = (5x + 3)(x + 7 + 3x - 2)
D = (5x + 3)(4x + 5)
E = (x + 1)(2x + 4) + (x + 1)(3x - 10)
E = (x + 1)(2x + 4 + 3x - 10)
E = (x + 1)(5x - 6)
F = x^2 - 25
F = x^2 - 5^2
F = (x - 5)(x + 5)
G = 4x^2 - 64
G = (2x)^2 - 8^2
G = (2x - 8)(2x + 8)
G = 2(x - 4) * 2(x + 4)
G = 4(x - 4)(x + 4)
H = 36x^2 - 1
H = (6x)^2 - 1^2
H = (6x - 1)(6x + 1)
J = 9x^2 - 81
J = (3x)^2 - 9^2
J = (3x - 9)(3x + 9)
J = 3(x - 3) * 3(x + 3)
J = 9(x - 3)(x + 3)
