Answer
$\frac{1}{y^{7}}$
Work Step by Step
Use the exponent product rule: $x^{y}$ $\times$ $x^{z}$ = $x^{y+z}$
Then use the negative exponent rule ($x^{-y}$ = $\frac{1}{x^{y}}$) to make all exponents positive.
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Appendix B - Practice - Page 741: 14
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