Question

3x is an example of ______. options: trinomial, monomial, binomial, variable

Explanation:

A monomial is a single term consisting of a product of constants and variables with non-negative integer exponents. $3x$ is one such single term. A trinomial has 3 terms, a binomial has 2 terms, and a variable is just a single symbol like $x$, not the product with a coefficient.

Answer:

monomial