Question

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

 2y − 3y² + 4y³

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 \[2y - 3 y^2 + 4 y^3\] has exactly three terms, i.e.,​ 2y, \[- 3 y^2\] and \[4 y^3\].

Therefore, it is a trinomial.