Réponse :
Bonjour
Explications étape par étape
B - C - E - F - G - H sont à factoriser
Seules A et D sont déjà factorisés
B = (x + 7)[2(x - 3) - 2x - 1]
B = (x + 7)(2x - 6 - 2x - 1)
B = (x + 7)(-7)
B = -7(x + 7)
E = (x - 2)(x + 1) - (x - 2)(x + 2)
E = (x - 2)(x + 1 - x - 2)
E = (x - 2)(-1)
E = -1(x - 2)
G = (3x - 5)(x - 1)
B = x^2 - 4(x - 5)^2
B = [x - 2(x - 5)][x + 2(x - 5)]
B = (x - 2x + 10)(x + 2x - 10)
B = (-x + 10)(3x - 10)
F = x^2 - 12x + 36
F = x^2 - 2 * x * 6 + 6^2
F = a^2 - 2ab + b^2
F = (a - b)^2
F = (x - 6)^2
H = (x - 1)(x + 1) - 3x(x + 1)
H = (x + 1)(x - 1 - 3x)
H = (x + 1)(-2x - 1)
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Réponse :
Bonjour
Explications étape par étape
B - C - E - F - G - H sont à factoriser
Seules A et D sont déjà factorisés
B = (x + 7)[2(x - 3) - 2x - 1]
B = (x + 7)(2x - 6 - 2x - 1)
B = (x + 7)(-7)
B = -7(x + 7)
E = (x - 2)(x + 1) - (x - 2)(x + 2)
E = (x - 2)(x + 1 - x - 2)
E = (x - 2)(-1)
E = -1(x - 2)
G = (3x - 5)(x - 1)
B = x^2 - 4(x - 5)^2
B = [x - 2(x - 5)][x + 2(x - 5)]
B = (x - 2x + 10)(x + 2x - 10)
B = (-x + 10)(3x - 10)
F = x^2 - 12x + 36
F = x^2 - 2 * x * 6 + 6^2
F = a^2 - 2ab + b^2
F = (a - b)^2
F = (x - 6)^2
H = (x - 1)(x + 1) - 3x(x + 1)
H = (x + 1)(x - 1 - 3x)
H = (x + 1)(-2x - 1)