# NCERT Class 9 Solutions: Polynomials (Chapter 2) Exercise 2.2 – Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

Glide to success with Doorsteptutor material for CBSE/Class-9 : get questions, notes, tests, video lectures and more- for all subjects of CBSE/Class-9.

Q-3 Verify whether the following are zeroes of the polynomial, indicated against them.

Solution:

Zero of a polynomial are the points where its value becomes zero.

1. If is a zero of polynomial

Then, should be 0

Therefore, is a zero of polynomial

1. If is a zero of polynomial

Then, should be 0

Therefore, is not a zero of polynomial

1. If are the zeros of polynomial

Then, should be 0

Therefore, ae zeros of polynomial

1. If are zeros of polynomial

Then, should be 0

Therefore, are zeros of polynomial

1. If is a zero of polynomial

Then, should be 0

Therefore, is a zero of polynomial

1. If is a zero of polynomial

Then, should be 0

Therefore, is a zero of polynomial

1. If are zeros of polynomial

Then, should be 0

Therefore, is a zero of polynomial

But is not a zero of this polynomial

1. If is a zero of polynomial

Then, should be 0

Therefore, is not a zero of polynomial

Q-4 Find the zero of the polynomial in each of the following cases:

Solution:

The value of x for which the polynomial becomes zero, i.e.. are known as “zeros” of the polynomial.

We have to find x for which,

Therefore, is a zero of polynomial

1. The value of x for which the polynomial becomes zero, i.e.. are known as “zeros” of the polynomial.

Therefore, is a zero of polynomial

1. The value of x for which the polynomial becomes zero, i.e.. are known as “zeros” of the polynomial.

We have to find x for which,

Therefore, is a zero of polynomial

1. The value of x for which the polynomial becomes zero, i.e.. are known as “zeros” of the polynomial.

We have to find x for which,

Therefore, is a zero of polynomial

1. The value of x for which the polynomial becomes zero, i.e.. are known as “zeros” of the polynomial.

We have to find x for which,

Therefore, is a zero of polynomial

1. The value of x for which the polynomial becomes zero, i.e.. are known as “zeros” of the polynomial.

We have to find x for which,

Therefore, is a zero of polynomial

Developed by: