Answer
$-\frac{1}{49}$
Work Step by Step
Rewrite the negative exponent by writing the reciprocal of it with a positive exponent. Evaluate the denominator.
$\frac{1}{-7^2}=-\frac{1}{49}$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.6 - Rational Exponents - R.6 Exercises - Page 56: 6
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