Réponse :
Explications étape par étape
Bonsoir
Factoriser :
D = (3x + 7)(6x - 1) + (6x - 1)(7 - 4x)
D = (6x - 1)(3x + 7 + 7 - 4x)
D = (6x - 1)(-x + 14)
E = (9 - 2x)(6 + 2x) - 6(9 - 2x)
E = (9 - 2x)(6 + 2x - 6)
E = (9 - 2x)(2x)
E = 2x(9 - 2x)
G = 25 - 20x + 4x^2
G = 5^2 - 2 * 5 * 2x + (2x)^2
G = (5 - 2x)^2
H = (2x + 1)^2 - 16
H = (2x + 1)^2 - 4^2
H = (2x + 1 - 4)(2x + 1 + 4)
H = (2x - 3)(2x + 5)
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Réponse :
Explications étape par étape
Bonsoir
Factoriser :
D = (3x + 7)(6x - 1) + (6x - 1)(7 - 4x)
D = (6x - 1)(3x + 7 + 7 - 4x)
D = (6x - 1)(-x + 14)
E = (9 - 2x)(6 + 2x) - 6(9 - 2x)
E = (9 - 2x)(6 + 2x - 6)
E = (9 - 2x)(2x)
E = 2x(9 - 2x)
G = 25 - 20x + 4x^2
G = 5^2 - 2 * 5 * 2x + (2x)^2
G = (5 - 2x)^2
H = (2x + 1)^2 - 16
H = (2x + 1)^2 - 4^2
H = (2x + 1 - 4)(2x + 1 + 4)
H = (2x - 3)(2x + 5)