FAQs on Like and Unlike Terms

Question 1

1. What are like terms?

Accepted Answer

Ans. Like terms are terms in an algebraic expression that have the same variables raised to the same powers. They can be combined or simplified by adding or subtracting their coefficients.

Question 2

2. What are unlike terms?

Accepted Answer

Ans. Unlike terms are terms in an algebraic expression that have different variables or the same variables raised to different powers. Unlike terms cannot be combined by adding or subtracting their coefficients.

Question 3

3. How can I identify like terms in an expression?

Accepted Answer

Ans. To identify like terms, look for terms that have the same variable(s) raised to the same power(s). The coefficients can be different, but the variables and their exponents should be the same.

Question 4

4. Can like terms be combined if they have different coefficients?

Accepted Answer

Ans. Yes, like terms can be combined even if they have different coefficients. When combining like terms, we add or subtract the coefficients while keeping the variable(s) and exponent(s) the same.

Question 5

5. Why is it important to simplify expressions by combining like terms?

Accepted Answer

Ans. Simplifying expressions by combining like terms allows us to reduce the complexity of the expression and make it easier to work with. It helps in solving equations, evaluating expressions, and making mathematical calculations more efficient.

Like and Unlike Terms Video Lecture - (Maths) Class 7 (Old NCERT)

Mathematics (Maths) Class 7 (Old NCERT)

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