SOLUTION: Simplify (n+5)!/(n+3)!
Solve (n-1)!/(n-3)=30
Algebra.Com
Question 1081666:  Simplify (n+5)!/(n+3)!
Solve (n-1)!/(n-3)=30 
Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!
 
!}{(n\ +\ 3)!}\ =\ \ \frac{(n\ +\ 5)(n\ +\ 4)(n\ +\ 3)!}{(n\ +\ 3)!}\ =\ (n\ +\ 5)(n\ +\ 4)\ =\ n^2\ +\ 9n\ +\ 20) 
Your second problem has no solution, although
!}{(n\ -\ 3)!}\ =\ 30) 
does have a solution
John

My calculator said it, I believe it, that settles it

 
 
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