(n+3) !=56 .(n+1) ! – InterviewSolution

1.	(n+3) !=56 .(n+1) !
Answer» (n+3)(n+2)(n+1)!=56(n+1)! nn+3n+2 = 56 nn+3n-54 =0 (n+9)(n-6) = 0 so n-6 = 0 so n=6

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