Exercise 9.4 Class 8 Maths: NCERT Solutions have been designed in an easy-to-understand manner to ensure quick revision for students. Students appearing for their class 8 exams must practice the exercise 9.4 Class 8 Maths NCERT Solutions. It will help them score better marks in the exams. 

Class 8 Maths chapter 9 exercise 9.4 NCERT solutions are designed comprehensively to help students get a normal approach to solving problems. In this exercise, students will get to learn the new concept of multiplying polynomials. Students can download the PDFs from the section given below and start their practice.

Exercise 9.4 Class 8 Maths: An Overview

Students of Class 8 are already familiar with algebraic expressions. In the previous classes, the students have learned various concepts related to it. However, in the previous sections of unit 9.3, the students have learnt about various expressions. 

Some of the common algebraic expressions include the following:

• Monomial- containing one term
• Binomial- containing two term
• Trinomial- containing three term
• Polynomial- containing more than one term. 

Some of the relevant examples for the Algebraic expressions include:

• Monomials- 4×2, -5xy, etc
• Binomials- a+b, 2a+2c, etc
• Trinomials- a+b+c, 2a+3b+7z, etc
• Polynomials- a+b+c+d, 6y2+7z3, etc

Once the students get a thorough understanding of what the various algebraic expressions are, they can get a better insight into learning the concept of like and unlike terms. This will be discussed thoroughly in the coming sections. In exercise 9.3 students will learn about the multiplication of algebraic expression. 

Before getting into downloading the PDF for Class 8 Maths Exercise 9.4 solutions, students can refer to the table below. The table is designed to help the students what they will be learning about in Maths Chapter 9 of Class 8. 

9.1	What are Expressions?	9.8	Multiplying a Monomial by a Polynomial
9.2	Terms, Factors and Coefficients	9.8.1	Multiplying a monomial by a binomial
9.3	Monomials, Binomials and Polynomials	9.8.2	Multiplying a monomial by a trinomial
9.4	Like and Unlike Terms	9.9	Multiplying a Polynomial by a Polynomial
9.5	Addition and Subtraction of Algebraic Expressions	9.9.1	Multiplying a binomial by a binomial
9.6	Multiplication of Algebraic Expressions: Introduction	9.9.2	Multiplying a binomial by a trinomial
9.7	Multiplying a Monomial by a Monomial	9.1	What is Identity?
9.7.1	Multiplying two monomials	9.11	Standard Identities
9.7.2	Multiplying three or more monomials	9.12	Applying Identities

NCERT Solutions for Class 8 Maths Chapter 9 Exercise 9.4: Download PDFs

The Exercise 9.4 Class 8 Maths deals with algebraic expressions and identities. It is a combination of all the basic things that the students have learnt so far. In this section, the students must revise the concept of polynomials and their components. Being familiar with these concepts will play an important role in helping the students practice the questions. 

Multiplication of two polynomials refers to the process of multiplying two algebraic expressions. After that, the like terms in the polynomials must be identified so that it can be subtracted or added as per the needs. The easiest way to multiply the expressions is to check if there are any like terms. 

If the algebraic expression has like terms, the students must reduce to make the polynomial simpler. This can further help in making multiplication easier. The students must follow the NCERT solutions regularly in order to score higher marks in the examination.

Refer to the images given below to have an understanding of the types of questions in exercise 9.4 Class 8 Maths. 

Now that students have an idea about the type of exercises they need to solve, they must ensure to practice the solutions regularly. Given below is the download link for the entire PDF so that the students can refer to them and practice offline. 

(download Exercise 9.4 Class 8 Maths NCERT Solutions PDF)

Algebraic Expressions and Identities Exercise 9.4: Exercise Overview

To practice exercise 9.4 efficiently without any problem, the students must know what like and unlike terms are. In unit three, the students have learnt about the Algebraic expressions. However, in unit 4 they will learn about like terms and unlike terms. 

In the exercise, the students need to learn how to calculate the product of the polynomials. If the polynomials have like terms, they can be reduced, depending on the condition given. They can either be subtracted or added and then changed to fit in the convenience. 

Exercise 9.4 contains various polynomials that need to be solved or simplified for better impact. However, the students must first learn to identify the polynomial given. Once the students have an understanding of like and unlike terms, they can easily simplify the polynomials and make the calculations..

Algebraic Expressions and Identities: Chapter Summary

Class 8 Chapter 9 is a very easy and interesting chapter. Students in Class 8 must ensure that they practice the questions thoroughly to have a better understanding of the unit. Since it deals with expressions and identities, students should know that the algebraic expressions are made of two units- constants (that can’t change such as real numbers) and variables (that can change such as the alphabets). 

The terms can be added to expressions to make them unlike or like. The monomials, binomials and trinomials- and the most common units. Till now, the concept of like terms and unlike terms haven’t been discussed in the article. The like terms are when the variables in an expression are the same. 

Whenever students are performing any operation of the Algebraic expression such as addition or subtraction, they must check if the expression is like or unlike. Subtraction and addition are possible for like terms and not unlike terms. However, multiplication can be carried between like and unlike terms to achieve a specific result. 

Any monomial when multiplied by a monomial will give the monomial itself. However, the polynomials can be multiplied by binomials, trinomials- and so on.

An identity refers to equality where all the values of the variable will be equal only. An equation cannot be an identity. When learning about algebraic expressions, the candidates can learn about identities as well. Identities will be discussed thoroughly in other units. The four identities will be helpful in calculating the squares and products and algebraic expressions. Candidates can conduct the calculation as an alternative method.

NCERT Solutions for Class 8: All-Chapter PDF Download

Students must practice the NCERT Solutions for Class 8 thoroughly to improve their performance. Given below are the download links for NCERT Solutions of all chapters. Refer to the table below to download the PDF of your preferred chapter:

NCERT Solutions for Class 8 Maths	Chapter Name
Chapter 1	Rational Numbers
Chapter 2	Linear Equations in One Variable
Chapter 3	Understanding Quadrilaterals
Chapter 4	Practical Geometry
Chapter 5	Data Handling
Chapter 6	Squares and Square Roots
Chapter 7	Cubes and Cube Roots
Chapter 8	Comparing Quantities
Chapter 9	Algebraic Expressions and Identities
Chapter 10	Visualising Solid Shapes
Chapter 11	Mensuration
Chapter 12	Exponents and Powers
Chapter 13	Direct and Inverse Proportions
Chapter 14	Factorisation
Chapter 15	Introduction to Graphs
Chapter 16	Playing with Numbers

Advantages of Practicing NCERT Solutions for Exercise 9.4 Class 8 Maths

Class 8 can be a crucial stage for students. It is during this stage that they will get to learn about the complicated concepts. Students appearing for Class 8 examinations must ensure that they practice the NCERT Solutions for Exercise 9.4 Class 8 closely. 

Some of the advantages of referring to the NCERT Solutions for Exercise 9.4 Class 8 Maths include the following:

• The NCERT Solutions are designed in a very simple-to-understand language. As a result, the students can refer to it for improving their preparation for Class 8. 
• The NCERT Solutions for Exercise 9.4 Class 8 covers all the important questions that will help students to understand the concepts easily. 
• The academic experts at Embibe have designed the NCERT Solutions as per the latest syllabus and NCERT guidelines. Therefore, all the information is relevant and new that can help students prepare for the examination accordingly. 
• Students can follow the exercise 9.4 Class 8 Maths NCERT Solutions for getting a stepwise approach to solving a particular problem. 
• Students can refer to the NCERT Solutions to prepare for various competitive exams.

FAQs on Exercise 9.4 Class 8 Maths

Students often tend to have few doubts regarding Algebraic expressions and identities. Since there are concepts that the students are learning for the first time, they need to consider solving them accordingly. Some of the most frequently asked questions regarding the 9.4 Class 8 Maths include the following:

Q1: What is the Exercise 9.4 class 8 Maths?

Ans: Exercise 9.4 Class 8 Maths is based on the chapter Algebraic Expressions and Identities. Exercise 9.4 deals with multiplication of polynomials. 

Q2: How many questions are there in Exercise 9.4?

Ans: There are various questions in Exercise 9.4 for the students to practice. Students can refer to the PDF link given above to download the respective PDFs. Therefore, they can save it and use for offline practice. 

Q3: Where can I download the PDF for Exercise 9.4?

Ans: Students can download the PDF for Exercise 9.4 NCERT Solutions for from Embibe. To get the PDF, students can refer to the links given above and download the exercises. 

Q4: What are the basics of Algebraic Expressions and Identities? 

Ans: To practice Algebraic expressions and identities in a better manner, students must practice the questions and answers thoroughly. It is advisable that the students know what the different algebraic expressions are. 

Q5: What are the most important formulas for Identities? 

Ans: The important formulas for Identities are mentioned in the respective section. Students can visit it to download the formulas and start their preparation. 

In the article above, the PDF link for NCERT Solutions for Exercise 9.4 Class 8 Maths is given. Students can refer to the PDF and start preparing for their exams. Furthermore, practising the PDF can also help to solve the doubts of students. 

We hope this article has been helpful for you. If you have any queries or confusion, please drop them in the comments section below. We shall get back to you. 

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