Here is a problem on my homework that I'm stumped on.

This is a test review, so I'm more interested in how you can find the answer to a similar problem.

A cube has a surface area of 1,350 square inches.

a. What are the side lengths of this cube?

By the way can someone tell me the formula for the surface area of a cube? I know how to find the surface area but I don't know how you would write it exactly.