NCERT Solutions for Class 8 Maths Algebraic Expressions and Identities

 

NCERT Solutions for Class 8 Maths Algebraic Expressions and Identities are created by askIITians experts to help you understand all the basic concepts of the chapter. With these solutions, you can easily revise the main topics of the chapter and prepare yourself for the Class 8 final Maths examination. We have provided stepwise solutions for all the exercise questions of the chapter with comprehensive explanations. You can download the NCERT Solutions for this chapter for free in pdf form and practice its exercises whenever you want. 

 

Chapter 9 Algebraic Expressions and Identities is an important chapter as it helps build a fundamental understanding of important concepts of algebra. The chapter includes basic definitions of expressions, terms, variables and coefficients. You will study different types of polynomial expressions such as monomials, binomials, trinomials, along with like terms, unlike terms, and addition, subtraction and multiplication of algebraic expressions.

About NCERT Class 8 Maths Chapter 9 Algebraic Expressions and Identities 

• Algebraic Expression: Any mathematical expression which consists of numbers, variables and operations is called an Algebraic Expression. For example, 7x + 4, 22y + 91
• Terms: Every algebraic expression is made up of two or more terms. Terms are added to form expressions. Terms themselves can be formed as the product of factors. For example, the term 4x  is the product of its factors 4 and x. The term 5 is made up of just one factor, i.e., 5.
• Monomial: An algebraic expression with only one term is called a monomial. For example, 2x, 76y, x2y, etc are monomials. 
• Polynomial: Algebraic expressions that have more than two terms with non-zero coefficients and variables having non-negative integral exponents are called polynomials. For example, x+y+z, 2x+45y, etc are polynomials. 
• Binomial: An algebraic expression that includes only two terms is known as a binomial. For example, 5a2 + 5, 3x+3y etc are binomial expressions. 
• Important algebraic identities: 

  • (a + b)2 = a2 + 2ab + b2

  • (a - b)2 = a2 - 2ab + b2

  • (a + b) (a - b) = a2 - b2

Download Free NCERT Solutions for Class 8 Maths Chapter 9 Algebraic Expressions and Identities

 

At askIITians, you can find exercise-wise solutions for Chapter 9 Algebraic Expressions and Identities. This way you can practise the exercises at your own pace and learn independently. Our comprehensive solutions will make it easier for you to understand the important concepts of the chapter and prepare well for your exams. 

 

Chapter 9 Class 8 Maths NCERT Ex 9.1 Solutions  

 

The first exercise of Algebraic Expressions and Identities includes 4 questions. This exercise is based on the introduction to algebraic expressions, terms, coefficients, monomials, binomials, and polynomial expressions. It also includes questions related to like and unlike terms and addition and subtraction of algebraic expressions. 

 

Chapter 9 Class 8 Maths NCERT Ex 9.2 Solutions 

 

The second exercise of Algebraic Expressions and Identities includes 5 questions. This exercise is based on the introduction to the multiplication of algebraic expressions, multiplying a monomial by a monomial and multiplying three or more monomials. Make sure you practice this exercise carefully. 

 

Chapter 9 Class 8 Maths NCERT Ex 9.3 Solutions 

 

The third exercise of this chapter includes 5 questions. This exercise is based on multiplying a monomial by a binomial and multiplying a monomial by a trinomial. This exercise is based on exercise 9.2. So if you have understood the previous exercise, you will be able to solve its questions easily. In case you have any doubt, check our NCERT Solutions. 

  

Chapter 9 Class 8 Maths NCERT Ex 9.4 Solutions 

 

The fourth exercise of this chapter includes 3 questions. It is based on two important multiplication concepts - multiplication of a binomial by a binomial and multiplication of a binomial by a trinomial. This is an advanced level exercise. You must solve this exercise carefully as many students make mistakes in multiplying larger algebraic expressions. 

 

Chapter 9 Class 8 Maths NCERT Ex 9.5 Solutions 

 

The fifth exercise of this chapter includes 8 questions. It is based on important algebraic identities and their application. This exercise forms the basis of algebra in higher classes. So, you must practice every question of this exercise thoroughly. Our NCERT Solutions are here to guide you in case you have any doubts. 

 

Why download NCERT Class 8 Maths Solutions for Chapter 9 Algebraic Expressions and Identities:

 

• NCERT Solutions are free to download in pdf format so that you can refer to them whenever you need them. 
• The solutions include comprehensive explanations that will help in enhancing your conceptual understanding of the chapter. 
• Every question is solved step by step which will make exam preparation easier for you. 
• You can study the NCERT Solutions independently and practice the questions at your own pace. 
• With these NCERT Solutions, you will understand how to approach different types of questions in the exams related to algebraic expressions and identities. 

NCERT Class 8 Maths Chapter 9 Algebraic Expressions and Identities FAQs

1. How many questions are there in NCERT Class 8 Maths Chapter 9 Algebraic Expressions and Identities? 

 

There are 25 unsolved questions in NCERT Class 8 Maths Chapter 9 Algebraic Expressions and Identities. You can download the stepwise solutions for all these questions from the askIITians website. 

 

1. I need more help in learning Chapter 9 Algebraic Expressions and Identities. What should I do? 

 

You can find many different study resources for Class 8 Maths NCERT Chapter 9 Algebraic Expressions and Identities such as revision notes, mind maps, flashcards, extra questions, and more. We also provide online coaching for Class 8 Maths so that students can study from the best teachers of India through the safety and comfort of their homes. 

 

1. What are the topics covered in NCERT Class 8 Maths Chapter 9 Algebraic Expressions and Identities?  

Class 8 Maths Chapter 9 includes the basic definitions of algebraic expressions, terms, variables and coefficients. It also includes different types of polynomial expressions such as monomials, binomials, trinomials, along with like terms, unlike terms, and addition, subtraction and multiplication of algebraic expressions.