Giải phương trình: a, (x - 1)^3 - x(x + 1)^2 = 5x(2 - x) - 11(x + 2); b, (x - 1) - (2x - 1) = 9 - x

a, (x - 1)^3 - x(x + 1)^2 = 5x(2 - x) - 11(x + 2).
b, (x - 1) - (2x - 1) = 9 - x
c, (x - 3)(x + 4) - 2(3x - 2) = (x - 4)^2
d, x(x + 3)^2 - 3x = (x + 2)^3 + 1
e, (x + 1)(x^2 - x + 1) - 2x = x(x + 1)(x - 1)