SOLUTION: Solve this: (2n+1C2) = (nC2)^2

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Question 922121: Solve this:
(2n+1C2) = (nC2)^2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(2n+1C2) = (nC2)^2
[(2n+1)(2n)]/[1*2]
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4n^2+2n / 2
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= 2n^2 + n
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Cheers,
Stan H.
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