# 1 - √5x. Is the given expression a polynomial or not? Justify your answer

**Solution:**

It is given that

1 - √5x

We can write it as

= 1 - √5x^{1/2}

The power of x here is 1/2 which is not a __whole number__

Therefore, 1 - √5x is not a __polynomial__.

**✦ Try This: **2 - √3x. Is the given expression a polynomial or not? Justify your answer

It is given that

2 - √3x

We can write it as

= 2 - √3x^{1/2}

The power of x here is 1/2 which is not a whole number

Therefore, 2 - √3x is not a polynomial.

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

**NCERT Exemplar Class 9 Maths Exercise 2.2 Problem 1(iii)**

## 1 - √5x. Is the given expression a polynomial or not? Justify your answer

**Summary:**

The highest sum of the exponents is known as the degree of a polynomial. The expression 1 - √5x is not a polynomial

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