Question

Which real numbers are equal to their cubes?

Answer 1

Hint:

x^3 = x

x^3 - x = 0

x(x^2 - 1) = 0

Keep going to solve for x

Answer 2

can you help me more please

Answer 3

x(x^2-1) = 0

becomes

x(x-1)(x+1) = 0

Answer 4

if a product of terms is zero one of the terms must be zero ,

so the three solutions for x are ....