Answer
$243$
Work Step by Step
The given expression is
$=9^{\frac{5}{2}}$
Rational exponents.
$=(9^{\frac{1}{2}})^5$
Use $9=3^2$.
$=((3^2)^{\frac{1}{2}})^5$
Simplify.
$=(3)^5$
$=243$.
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