Terminology of polynomial
Next we need to get some terminology out of the way.
Monomial polynomial
A monomial is a polynomial which consists of exactly one term.
Binomial polynomial
A binomial is a polynomial which consists of exactly two terms.
Trinomial polynomial
Finally, a trinomial is a polynomial which consists of exactly three terms.
We will utilize these terms off and on so that you should probably be at least somewhat familiar with them.
Adding, subtracting and multiplying polynomials
This is probably best done along a couple of examples.