Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 5 - Section 5.2 - Negative Exponents and Scientific Notation - Practice - Page 350: 17



Work Step by Step

1. Since exponents cannot be negative when simplifying you take the reciprocal of both numbers giving you $\frac{1}{3^2}+\frac{1}{3}$ 2. Square the denominator of $\frac{1}{3^2}$ which will give you $\frac{1}{9}+\frac{1}{3}$ 3. Add the fractions which will give you an answer of $\frac{4}{9}$
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