OK I have a problem figuring out how to do polynomials, monomials, binomials, and trinomials. I can't find out how you get the differences of them all. I have had several people help me with it, but they made it more confusing. We are going to have a chapter test soon so I would like to get my answers about this right.
Can anybody help me with my little problem.

The Wikipedia site is rather clear and easy to understand : have a look here! (http://en.wikipedia.org/wiki/Polynomial)