1. **State the problem:** Simplify the expression $$\left(\frac{2x^{-3} y^{-2}}{3x^{-2} y^3}\right)^{-2}$$ and then evaluate it for $x = -2$ and $y = 3$.
2. **Use the laws of exponents:** When dividing powers with the same base, subtract the exponents: $$\frac{a^m}{a^n} = a^{m-n}$$. When raising a power to another power, multiply the exponents: $$(a^m)^n = a^{mn}$$.
3. **Simplify inside the parentheses first:**
$$\frac{2x^{-3} y^{-2}}{3x^{-2} y^3} = \frac{2}{3} \cdot x^{-3 - (-2)} \cdot y^{-2 - 3} = \frac{2}{3} x^{-1} y^{-5}$$
4. **Apply the outer exponent $-2$:**
$$\left(\frac{2}{3} x^{-1} y^{-5}\right)^{-2} = \left(\frac{2}{3}\right)^{-2} \cdot (x^{-1})^{-2} \cdot (y^{-5})^{-2}$$
5. **Simplify each term:**
$$\left(\frac{2}{3}\right)^{-2} = \left(\frac{3}{2}\right)^2 = \frac{9}{4}$$
$$ (x^{-1})^{-2} = x^{2}$$
$$ (y^{-5})^{-2} = y^{10}$$
6. **Combine all:**
$$\frac{9}{4} x^{2} y^{10}$$
7. **Substitute $x = -2$ and $y = 3$:**
$$\frac{9}{4} \cdot (-2)^2 \cdot 3^{10} = \frac{9}{4} \cdot 4 \cdot 59049$$
8. **Cancel and multiply:**
$$\frac{9}{\cancel{4}} \cdot \cancel{4} \cdot 59049 = 9 \cdot 59049 = 531441$$
**Final answer:** $$531441$$
Exponent Fraction Ab9B15
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