mathhelpforum users, I need your help!

While doing some homework, I got stuck on a few problems.

Find the simplest equivalent expression for each of the following:

4xsquared - 64/12xsquared - 60x + 48

2xsquared - 128/4xsquared - 36x + 32

Please show how you got the answer, so that I can learn from difficulties.

Any helpwillbe appreciated!