## RS Aggarwal Solutions Class 7 Chapter-6 Algebraic Expressions (Ex 6B) Exercise 6.2 - Free PDF

## FAQs on RS Aggarwal Solutions Class 7 Chapter-6 Algebraic Expressions (Ex 6B) Exercise 6.2

**1. What is an algebraic expression and what are the terms of expression as mentioned in chapter 6 Class 7 CBSE textbook?**

Algebraic numbers are a combination of variables, constants and algebraic operations like addition, subtraction, multiplication etc. It is a way of expressing the numbers using alphabets and variables rather than directly mentioning the number and stating its value. For example, 3x+2y+4 is an algebraic expression. When two different parts are added together, then it is known as a term. For example, in the above term, 3x, 2y and 4 are different expressions. They are added together to form the term.

**2. What are the different types of algebraic expressions as mentioned in the chapter 6 Class 7 CBSE textbook?**

Different algebraic terms mentioned in this chapter are monomial, binomial, trinomial and polynomial. This division depends on the number of terms in the expression. For example, 7xy is a monomial and 2x+3y is a binomial.

3. Define a variable, coefficient and constant of an algebraic expression as mentioned in chapter 6 Class 7 CBSE textbook?

In an algebraic expression, a variable is the part of the expression whose value changes according to the situation. As they are changing, they are expressed using alphabets. On the other hand, terms expressed using numbers have constant values and are hence called constants. The numerical part of the expression is the coefficient. For example in the term 4xy, 4 is the coefficient.

**4. What are the different uses of algebraic expressions?**

They can be used to derive formulas to find out the area, perimeter or volume of geometrical shapes. For example, the perimeter of an equilateral triangle with three equal sides can be expressed as P = 3l where the “l” represents the length of each side. Similarly, area and volume can also be expressed.

**5. Is it important to study chapter 6 Class7 CBSE RS Aggarwal solutions?**

RS Aggarwal solutions are made with the utmost care by experts after proper research into the CBSE curriculum, syllabus and previous year questions. So it is in perfect sync with the CBSE pattern. Coming to the question of reading the chapter, students are recommended not to leave any chapter behind and prepare all of them. It not only helps with scoring well but also helps them understand complex concepts in upcoming Classes. If students face any difficulty in solving problems, Vedantu has all the solved materials for standard reference books.