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.
(45x^2-5x-4)/(10x^2 +1)^2
(45x^2-5x-4)/(10x^2 +1)^2
Natural Language
Math Input
Extended Keyboard