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

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

Chapter 2 - Functions - 2.1 Input and Output - Exercises and Problems for Section 2.1 - Skill Refresher - Page 75: S6



Work Step by Step

Using the fact that $$(\frac{a}{b})^n=\frac{a^n}{b^n}$$ $(\frac{1}{x})^2=\frac{1^2}{x^2}=\frac{1}{x^2}$. The expression is simplified to $3+\frac{2}{x^2}-x$, or $-x+3+\frac{2}{x^2}$.
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