Math Question
![3. Multiply the rational expressions
\[
\frac{x^{2}+9 x+20}{2 x+8} \cdot \frac{x^{2}-3 x-40}{x^{2}-4 x-32}
\]
\( \frac{x+5}{2(x+4)} \)
\( \frac{2(x+5)}{(x-4)^{2}} \)
\( 2(x+5)(x+4) \)
\( \frac{(x+5)^{2}}{2(x+4)} \)](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2022/3/23/7a0b07c3-d132-46a7-b51f-fd554b7409e6.png "3. Multiply the rational expressions
\[
\frac{x^{2}+9 x+20}{2 x+8} \cdot \frac{x^{2}-3 x-40}{x^{2}-4 x-32}
\]
\( \frac{x+5}{2(x+4)} \)
\( \frac{2(x+5)}{(x-4)^{2}} \)
\( 2(x+5)(x+4) \)
\( \frac{(x+5)^{2}}{2(x+4)} \)")
Solution
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