How to determine if an expression is a monomial, binomial, or trinomial

The video tutorial explains how to determine if an expression is a monomial, binomial, trinomial, or polynomial. It provides definitions for each type and demonstrates the process of identifying the type of a given expression. The example used shows that 3/7 * X is a monomial because it involves the multiplication of a number and a variable, with no addition involved.

What new insight or understanding did you gain from this video?