Bonsoir
Développer et réduire les expressions.
A = 3(x + 8) + 4(7x + 2)
A = 3x + 24 + 28x + 8
A = 31x + 32
B = 5(x-1)-7x(2 + 3x)
B = 5x - 5 - 14x - 21x^2
B = -21x^2 - 9x - 5
C = 2x(4-5x) - (x-7)
C = 8x - 10x^2 - x + 7
C = -10x^2 + 7x + 7
D = (3-8x) - 5(4x - 7)
D = 3 - 8x - 20x + 35
D = -28x + 38
E = 7(32x) - 4x(2x - 1)
E = 224x - 8x^2 + 4x
E = -8x^2 + 228x
F = 7x-5(2-9.x)+7(9x - 1)
F = 7x - 10 + 45x + 63x - 7
F = 115x - 17
