Simplify
\(\frac{x^2 + 3x + 2}{2x - 6} \div \frac{4 + 2x}{9 - x^2}\).
\(\frac{ \sqrt{25a^4b^2} \times (8b^{-3})^{\frac{1}{3}} }{ (a^{-1})^2}\).
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