Answer
$n^{2} + 3n + 2$
Work Step by Step
To solve the expression we will break down factorials and cancel same terms.
$\frac{(n+2)\times(n+1)\times n!}{n!}$
=$(n+2) \times(n+1)$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 8 - Sequences, Induction, and Probability - Exercise Set 8.1 - Page 714: 27
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