Answer
The sum = 60
Work Step by Step
If i = 1 to 4 then,
The sum = (2$\times$1$\times$1) + (2$\times$2$\times$2) + (2$\times$3$\times$3) + (2$\times$4$\times$4) = 2 + 8 + 18 + 32 = 60
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: 31
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