Answer
364
Work Step by Step
If we want to find the 9th term, we have to substitute $n$ by 9:
$a_9=(3(9)+1)(2(9)-5)=(27+1)(18-5)=28\times13=364$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 14 - Sequences, Series, and the Binomial Theorem - 14.1 Sequences and Series - 14.1 Exercise Set - Page 894: 15
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