Simplify: (2p - q)\(^2\) - (p + q)\(^2\)
(2p - q)\(^2\) - (p + q)\(^2\)
Using the difference of two squares
(2p - q)\(^2\) - (p + q)\(^2\) = ( 2p - q + p + q)(2p - q - (p + q))
= 3p(2p - q - p - q) = 3p(p - 2q)
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