By Mansi Yadav

Verified by Ajay Kumar

In which of the following, the two expressions are like terms?

  1. 7x and 7y

  2. 7x and 9x

  3. 7x and 7xz

  4. 7x and 7xy

Answer: B

Solution

Solution: Like terms have the same variables raised to the same powers. In 7x and 9x, the variable part is x in both terms. Therefore, they are like terms. Trick: Compare the variable parts; coefficients may differ, but variables and their powers must match.

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