# y³ - 5y. Classify the following polynomial as polynomials in one variable, two variables etc

**Solution:**

Given, the __polynomial__ is y³ - 5y.

We have to classify the given polynomial.

A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables.

Polynomials can be classified based on the number of variables

1) Monomial - an expression with only one variable

2) __Binomial__ - an expression that contains two variables

3) Trinomial - an expression that contains three variables.

4) Constant polynomial - an expression that contains only the constant term

5) Polynomial - A polynomial is a type of expression.

y³ - 5y is an expression with only one variable

Therefore, y³ - 5y is a polynomial.

**✦ Try This: **Classify the following polynomial as polynomials in one variable, two variables etc. b³ - b² - 5b.

**☛ Also Check: **NCERT Solutions for Class 9 Maths Chapter 2

**NCERT Exemplar Class 9 Maths Exercise 2.3 Problem 1(ii)**

## y³ - 5y. Classify the following polynomial as polynomials in one variable, two variables etc

**Summary:**

y³ - 5y is a polynomial with one variable

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