Evaluate the following limit. Enter an exact numeric answer. To enter oo in your answer field, . When you are in text entry mode (when your answer field has just one line), type the word inf . When you are in equation editor entry mode (when your answer field has multiple lines with t bar), choose the symbol oo to enter co. You can switch entry modes by clicking on the button with the upper case Greek letter _ next to th lim r+4 Number x-+-4x2-16 Please explain, in your own words and in a few sentences, how you arrived at your answers