Answer
$4m+2-\frac{1}{m} - \frac{3}{5m^2}$
Work Step by Step
$(20m^3+10m^2-5m-3) \div 5m^2$ = $\frac{20m^3}{5m^2} + \frac{10m^2}{5m^2} - \frac{5m}{5m^2} - \frac{3}{5m^2}$ = $4m^1+2m^0-\frac{1}{m} - \frac{3}{5m^2}$ $4m+2-\frac{1}{m} - \frac{3}{5m^2}$
