Answer
Answers may vary
$x=4$ for positive $x^{-1}$
$x=-2$ for negative $x^{-1}$
In general, the sign of $x$ is the sign of $x^{-1}$
Work Step by Step
$x=4$
$x^{-1}$
$4^{-1}$
$1/4^1$
$1/4$
$x=-2$
$x^{-1}$
$-2^{-1}$
$1/(-2)^1$
$1/-2$
$-1/2$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.2 - Negative Exponents and Scientific Notation - Exercise Set - Page 356: 120
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