When there are three terms, it's a trinomial:
So, what about four terms? Quadnomial? Naw, we don't go there. Too hard to pronounce.
This guy is just called a polynomial:
There's one more word I need to tell you about:
Here's how you find the degree of a polynomial:
Look at each of the terms...
Whoever has the most letters wins!
Check it out:
This is a 5th degree polynomial:
This guy has 5 letters...
The degree is 5.