I've already tried the answers of DNE, -infinity, infinity, 0, so I only have one more shot for full credit. I don't understand the steps to solve, so if you could explain that for me rather than just the correct answer, it would really help me out (:

Use properties of limits and algebraic methods to find the limit, if it exisis. (If the limit is innite' enter 'un' or 'w', as appropriate. If the limit does not Dthenvise exist, enter DNE.) "m E z x