SOLUTION: (2a-b)^2-(a+2b)^2

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Question 67453: (2a-b)^2-(a+2b)^2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(2a-b)^2-(a+2b)^2
= [4a^2-4ab+b^2] - [a^2+4ab+4b^2]
=3a^2-8ab
Cheers,
Stan H.