put all 3 steps in order to solve: x^3 - 10 = -2

1. Add 10 to both sides of the equation: x^3 = 8

2. Take the cube root of both sides: x = 2
3. Check the solution by substituting x = 2 back into the original equation: 2^3 - 10 = -2, which is true.

is the answer irrational?

No, the solution x = 2 is a rational number.