Question

How do you determine if `5+x` is a monomial?

Answer 1

https://www.mathsisfun.com/definitions/monomial.html

This has two terms `5` and `x` therefore this is not monomial.

Explanation:

From the definition of monomial - https://www.mathsisfun.com/definitions/monomial.html :

A polynomial with just one term.

This has two terms `5` and `x` therefore this is not monomial.