Answer
$44$
Work Step by Step
Given: $\sum_{i=1}^4(i+4)(i-1)$
Four terms will be: {$0,6,14,24$}
and
Sum will be as follows:
$=0+6+14+24$
or, $=44$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 10 - Mid-Chapter Check Point - Page 1077: 12
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