Réponse :
Explications étape par étape
Bonsoir
Simplifier :
C = -3x + 5 - 7x + 2x - 6x - 6
C = -3x - 7x + 2x - 6x + 5 - 6
C = -16x + 2x - 1
C = -14x - 1
D = 4x - 5 + 6x^2 + 4 - 2x^2 - x + x^2 - 7x
D = 6x^2 - 2x^2 + x^2 + 4x - x - 7x - 5 + 4
D = 4x^2 - 4x - 1
Calculer puis réduire :
E = 3x * (4 * x) + (-x) * (-2) + 5 * 4x + 5 * (-2)
E = 12x^2 + 2x + 20x - 10
E = 12x^2 + 22x - 10
F = 4x * 2x + 4x * (-1) - 2 * 2x - 2 * (-1)
F = 8x^2 - 4x - 4x + 2
F = 8x^2 - 8x + 2
G = 7 * x - 3 * x - 3 * 7 - 2x * x - 2x * (-3) - 7 * x - 7 * (-3)
G = 7x - 3x - 21 - 2x^2 + 6x - 7x + 21
G = -2x^2 + 3x
