Answer
$9x^{11}y^{2}$
Work Step by Step
RECALL:
The quotient rule of exponents states that: $\dfrac{a^m}{a^n}=a^{m-n}, a \ne 0$.
Divide the numerical coefficients, and use the quotient rule to find:
$=9x^{12-1}y^{4-2}
\\=9x^{11}y^{2}$