For the function $f(x)$ given below, evaluate $\underset{x+}{lim}f(x)$ and $\underset{x+}{lim}f(x).$

$f(x)=\frac{\sqrt[\phantom{2}]{5x^2+2}}{-2x-3}$

Enter an exact answer.

Provide your answer below:

$\underset{x}{lim}f(x)=$

$\underset{x-}{lim}f(x)=$