#### Answer

$= 2x^{2} + x - \frac{4}{5}$

#### Work Step by Step

$\frac{10x^{3}+5x^{2}-4x}{5x}$
$= \frac{x(10x^{2}+5x-4)}{x(5)}$
$= \frac{10x^{2}+5x-4}{5}$
$= \frac{10x^{2}}{5} + \frac{5x}{5} - \frac{4}{5}$
$= \frac{2x^{2}}{1} + \frac{x}{1} - \frac{4}{5}$
$= 2x^{2} + x - \frac{4}{5}$