SOLUTION: (n+1)! = 12(n-1)!

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Question 889116: (n+1)! = 12(n-1)!
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%28n%2B1%29%21+=+12%28n-1%29%21
%28n%2B1%29n%28n-1%29%21=12%28n-1%29%21
n%28n%2B1%29=12
n%5E2%2Bn-12=0
%28n%2B4%29%28n-3%29=0
Only the positive solution works here.
n-3=0
highlight%28n=3%29