Bonjour quelqu’un pourrait m’aider sur ce DM de math ? Je suis vraiment nulle en math. Développer les expressions :
A = (x - 1)(x + 2)
B = (x - 3)(x + 5)
C = (x - 6)(2x - 3)
D = (5 – 4x) -3- (7x - 3)
E = (5x – 2) + 4x – (7x + 1)
F = 3 - [7 – (3x + 1)] + (5 – 3x)
G = 4x + [3 - (7 – x)] - [4x - (x - 2)]
H = 3 - 2x[7 – 2x(3x + 1)] + 2x(5 – 3x)
1 = 4x + x[3 – x(7 - x)] - 2x [4x - (x - 2)]
J = 5(3x - 1)(2x + 3) - 3(2x + 3)(5 - 3x) + (2x + 3)
K = (3x + 1)2 - (x - 5)2
L = (x - 9)(3x + 5)2
A = (x - 1)(x + 2)
B = (x - 3)(x + 5)
C = (x - 6)(2x - 3)
D = (5 – 4x) -3- (7x - 3)
E = (5x – 2) + 4x – (7x + 1)
F = 3 - [7 – (3x + 1)] + (5 – 3x)
G = 4x + [3 - (7 – x)] - [4x - (x - 2)]
H = 3 - 2x[7 – 2x(3x + 1)] + 2x(5 – 3x)
1 = 4x + x[3 – x(7 - x)] - 2x [4x - (x - 2)]
J = 5(3x - 1)(2x + 3) - 3(2x + 3)(5 - 3x) + (2x + 3)
K = (3x + 1)2 - (x - 5)2
L = (x - 9)(3x + 5)2