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.
- $f(x) =-2 x, g(x) =10 x-5$
Find $(f \cdot g) (x)$ .

A) $10 x^{2}+10 x$
B) $-10 x^{2}$
C) $-20 x^{2}+10 x$
D) $-20 x^{2}-5$