Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
lim (x^2 + 2x + 3)/(x^2 - 2x - 3) as x->3
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random