Question

Which of the following pairs of terms is a pair of unlike terms?

• A. 3xy, 2yz
• B. $-x{y}^2,-2x{y}^2$
• C. $8x^2$, 7y
• D. $-6x^{2}y,20x^{2}y$

Answer 1

Answer: (A), (C)

The correct options are
A 3xy, 2yz
C $8x^2$, 7y

Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers.
$8x^2$, 7y is a pair of unlike terms.
Similarly, 3xy, 2yz is also a pair of unlike terms.