Question

How do you solve `x^3 + 27 = 0`?

Answer 1

`x=-3`

Explanation:

First, you subtract `27` off both sides.
`x^3+27=0`
`x^3=-27`

Then, you take the cube root of both sides.
`root(3)(x^3)=root(3)(-27)`
`x=-3`

`root(3)(-27)=-3` because...
`-3*-3*-3=-27`

Answer 2

The answer is -3.

Explanation:

Subtract 27 from each side
You should have `x^3`=-27
Take the cubed root of each side.
Answer is -3. (Any odd number root (`x^1,x^3,x^5,`..., ect.) can have negative answers.)