SOLUTION: I have to know how to solve permutations. Could you please list the process, step by step?

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Question 143868: I have to know how to solve permutations. Could you please list the process, step by step?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Example:
5P2 = 5!/(5-2)!
= 5!/[3!]
= [5*4*3*2*1]/[3*2*1]
= 5*4
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General Formula nPr = n!/(n-r)!
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Cheers,
Stan H.