the expression 2x+5y is=
[a] monomial [b] binomial [c] constant term [d] quadrinomial
The expression mentioned by you is a binomial.
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https://www.meritnation.com/ask-answer/question/monomial-binomial-binomial-may-be-defined-as-an-algeb/algebraic-expressions/3381762
Here is the link for the answer to a similar query:
https://www.meritnation.com/ask-answer/question/monomial-binomial-binomial-may-be-defined-as-an-algeb/algebraic-expressions/3381762