Question

Identify the pairs of like terms :

$$\begin{gathered} 5x,-11y;3ab,2a{b}^2, \\ -11mn,9mn;2xyz,-6yzx; \\ 3m^{2}n,2m{n}^{2}and7x,5xy \end{gathered}$$

Answer 1

Like terms consist of same variables and raised to the same power.

Now, like terms are

$$\begin{gathered} 5x,7x \\ -11mn,9mn \\ 2xyz,-6yzx \end{gathered}$$

Hence, the like terms are $5x,7x,-11mn,9mn,2xyz,-6yzx$etc.