College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 8 - Sequences, Induction, and Probability - Exercise Set 8.4 - Page 751: 10

Answer

See below.

Work Step by Step

$S_k:2$ is a factor of $k^2-k$ $S_{k+1}:2$ is a factor of $(k+1)^2-(k+1)=k^2+2k+1-k-1=k^2+k$
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