For the Given Functions $f(x)$ And $g(x)$ , Find $(f \cdot g)(x)$ Or $\left(\frac{f}{g}\right)(x)$

Multiple Choice

For the given functions $f(x)$ and $g(x)$ , find $(f \cdot g) (x)$ or $\left(\frac{f}{g}\right) (x)$ as indicated.
- $f(x) =-9 x+4, g(x) =5 x^{2}-x+4$
Find $(\mathrm{f} \cdot \mathrm{g}) (\mathrm{x})$ .

A) $-45 x^{3}-40 x+16$
B) $-45 x^{3}+11 x^{2}-40 x+16$
C) $14 x^{2}-40 x+16$
D) $-45 x^{3}+29 x^{2}-40 x+16$