# Math Help - simple algebra

1. ## simple algebra

I can't figure this out:

0 = x^3 - 4x
What is x?

I could guess for x, but how do I solve this arithmetically?
Thank you,
Patrick

2. try factoring the expression on the right side of the equation and using the zero product property to solve for x.

3. $0 = x^3-4x$

Factor an x,
$0 = (x)\cdot(x^2-4)$

Now, you can see that if one of these factors are zero, then the equation is satisfied.

We're looking for cases where either $x=0$ or $x^2-4=0$.

I think you can solve from here.

4. Thank you guys. That really helped a lot ..