Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - 5.6 - Integral Exponents and Scientific Notation - Concept Quiz 5.6: 2

Answer

True

Work Step by Step

The negative exponent rule states that for every nonzero number $a$ and integer $n$, $a^{-n}=\frac{1}{a^n}$. Using this rule, we can simplify $x^{-2}$ to $\frac{1}{x^2}$, which is the reciprocal of $x^2$.
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