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40 votes
Simplify (p^2+pq-q^2)+(-p^2+3pq+q^2)

User Jackfrankland
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1 Answer

21 votes
21 votes

Simplify the expression (p^+pq+q^2)-(-p^2+3q+q^2) as,


\begin{gathered} (p^2+pq-q^2)+(-p^2+3pq+q^2)=p^2+pq-q^2-p^2+3pq+q^2 \\ =4pq \end{gathered}

So answer is 4pq.

User Quaneisha
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