Question

2x+5y which nominal?

Answer 1

`2x+5y` is a binomial

Explanation:

The expression `2x+5y` is the sum of two terms `2x` and `5y`.

So we call it a "binomial" - the prefix "bi-" meaning "two" and the suffix "-nomial" meaning "of names".

Here are some names we use for expressions with one or more terms:

(1) "Monomial"

(2) "Binomial"

(3) "Trinomial"

(4) "Quadrinomial"