$[0/0\mathrm{.}58$ Points$]$ TAMUBUSCALC$11\mathrm{.}2\mathrm{.}014.\frac{4}{6}$ Submissions Used

Evaluate the limit exactly. $($If the limit is infinite, enter $\text{'}\text{'}$ or $\text{'}-\text{'},$ as appropriate. If the limit does not otherwise exist, enter DNE.$)$

$\underset{x3}{lim}(\frac{x^2-9}{x-3}+\sqrt[\phantom{2}]{x^2+5})$