Question

Classify the following polynomial as monomial, binomial, trinomial. Which polynomial do not fit in any category?

x + y

Answer 1

Definitions:
A polynomial is monomial if it has exactly one term. It is called binomial if it has exactly two non-zero terms. A polynomial ​is a trinomial if it has exactly three non-zero terms.

The polynomial \[x + y\] has exactly two non zero terms , i.e.,​ x and y. Therefore, it is a binomial.