#### Answer

$\frac{1}{x^{10}z^{20}}$

#### Work Step by Step

$(\frac{x^{2}z}{z^{-3}})^{-5}$
$(\frac{x^{2}}{z^{-4}})^{-5}$
$(\frac{z^{-4}}{x^{2}})^{5}$
$\frac{z^{-20}}{x^{10}}$
$\frac{1}{x^{10}z^{20}}$

Published by
Prentice Hall

ISBN 10:
0133500403

ISBN 13:
978-0-13350-040-0

$\frac{1}{x^{10}z^{20}}$

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