# NCERT Solutions for Class 8 Maths Chapter 9 (Ex 9.1) Algebraic Expressions and Identities

## NCERT Solutions for Class 8 Chapter 9 Algebraic Expressions and Identities -Free PDF Download

Free PDF download of NCERT Solutions Maths Class 8 Solutions Chapter 9 – Algebraic Expressions and Identities solved by Expert Maths Teachers on CoolGyan.Org. All Chapter 9 – Algebraic Expressions and Identities Questions with Solutions for NCERT to help you to revise complete Syllabus and Score More marks.
Maths Revision Notes for Class 8

 Chapter Name Algebraic Expressions and Identities Chapter Chapter 9 Exercise Exercise 9.1 Class Class 8 Subject Maths NCERT Solutions Board CBSE TEXTBOOK CBSE NCERT Category NCERT Solutions

# NCERT SOLVED

1. Identify the terms, their coefficients for each of the following expressions:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Ans. (i) Terms:  and

Coefficient in  is 5 and in  is

(ii) Terms:  and

Coefficient of  and  of  is 1.

(iii) Terms:  and

Coefficient in  is 4, coefficient of  is  and coefficient of  is 1.

(iv) Terms:  and

Coefficient of is , coefficient of  is 1 and coefficient of  is

(v) Terms:  and

Coefficient of  is  coefficient of  is  and coefficient of  is

(vi) Terms:  and

Coefficient of  is 0.3, coefficient of  is  and coefficient of  is 0.5.

2. Classify the following polynomials as monomials, binomials, trinomials. Which polynomials do not fit in any of these three categories:

Ans. (i) Since  contains two terms. Therefore it is binomial.

(ii) Since 1000 contains one terms. Therefore it is monomial.

(iii) Since  contains four terms. Therefore it is a polynomial and it does not fit in above three categories.

(iv) Since contains three terms. Therefore it is trinomial.

(v) Since  contains two terms. Therefore it is binomial.

(vi) Since contains three terms. Therefore it is trinomial.

(vii) Since  contains three terms. Therefore it is trinomial.

(viii) Since 4z-15z2contains two terms. Therefore it is binomial.

(ix) Since  contains four terms. Therefore it is a polynomial and it does not fit in above three categories.

(x) Since  contains one terms. Therefore it is monomial.

(xi) Since  contains two terms. Therefore it is binomial.

(xii) Since  contains two terms. Therefore it is binomial.

(i)

(ii)

(iii)

(iv)

Ans. (i)

(ii)

Hence the sum if 0.

Hence the sum is

(iii)

(iv)

Hence the sum is

.

4. (a) Subtract  from
(b) Subtract  from
(c) Subtract  from

Ans. (a)

(b)

(c)