Solution
- In order for us to figure out which of the options is not simplified, we simply need to check which of the options has more than 1 like term.
- Observing the options, we find out that:
[tex]\begin{gathered} \text{ Option C has more than 1 like terms. They are:} \\ 2p^2q^2\text{ and }-2p^2q^2 \end{gathered}[/tex]
- Had the expression been simplified, we would have had:
[tex]\begin{gathered} 2p^2q^2+2p^2q^3-2p^2q^2+xy \\ \text{ Collect like terms} \\ \\ 2p^2q^2-2p^2q^2+2p^2q^3+xy \\ \\ =2p^2q^3+xy \end{gathered}[/tex]
Final Answer
The answer is OPTION C
