Question 1

What is an algebraic expression?

Accepted Answer

An algebraic expression is a combination of constants and variables connected by the signs of fundamental operations like addition, subtraction, multiplication, and division. For example, 4x + 5 is an algebraic expression.

Question 2

Identify the terms in the expression 4x + 5.

Accepted Answer

Terms are the parts of an algebraic expression which are added or subtracted. In the expression 4x + 5, the terms are 4x and 5.

Question 3

What is the coefficient of x in the term -7xy?

Accepted Answer

The coefficient of a particular variable in a term is the remaining part of the term multiplied by that variable. In -7xy, the coefficient of x is -7y.

Question 4

Classify 7xy into its type based on the number of terms.

Accepted Answer

An expression with only one term is called a monomial. Since 7xy has only one term, it is a monomial.

Question 5

Which of the following is a binomial?

Accepted Answer

A binomial is an algebraic expression that contains exactly two unlike terms. Among the choices, 5m - 3n has two unlike terms.

Algebraic Expressions — CBSE Class 7 Mathematics Important Questions & Revision Notes