Functions Modeling Change: A Preparation for Calculus, 5th Edition

Published by Wiley
ISBN 10: 1118583191
ISBN 13: 978-1-11858-319-7

Chapter 3 - Quadratic Functions - Exercises for Skills for Factoring - Page 135: 63



Work Step by Step

Both terms have a $P$ value along with $(1+r)^2$. Therefore, $P(1+r)^2$ can be factored out to yield $P(1+r)^2(1+r)$. However, $(1+r)^2(1+r)=(1+r)^3$ through exponent rules, leaving $P(1+r)^3$.
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