Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 11 - Review - Page 669: 77

Answer

130

Work Step by Step

Sum of $i^2*(i+1)$ from $i=1$ to $i=4$ $i=1$ $i^2(i+1)$ $1^2(1+1)$ $1*2$ $2$ $i=2$ $i^2(i+1)$ $2^2(2+1)$ $4*3$ $12$ $i=3$ $i^2(i+1)$ $3^2(3+1)$ $9*4$ $36$ $i=4$ $i^2(i+1)$ $4^2(4+1)$ $16*5$ $80$ $2+12+36+80$ $130$
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