SOLUTION: (n+2)!(n-2)!-(n+1)!(n-1)!/(n)!(n-3)!

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Question 415088: (n+2)!(n-2)!-(n+1)!(n-1)!/(n)!(n-3)!
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
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