Answer
$x^{12}y^{7}$
Work Step by Step
Using $\dfrac{a^x}{a^y}=a^{x-y}$, then the expression, $
\dfrac{x^{12}y^{9}}{x^0y^2}
$, simplifies to
\begin{array}{l}\require{cancel}
x^{12-0}y^{9-2}
\\\\=
x^{12}y^{7}
.\end{array}
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