SOLUTION: if mC2=n , then find the value of (m+1)C4

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Question 537685: if mC2=n , then find the value of (m+1)C4
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
if mC2=n , then find the value of (m+1)C4
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mC2 = [m(m-1)/2] = n
So, m(m-1) = 2n
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(m+1)C4 = (m+1)(m)(m-1)(m-2)/(1*2*3*4)
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Substitute to get:
(m+1)(2n)(m-2) = (m+1)C4
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Cheers,
Stan H.