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.
simplify((-x^3(1-x^2)^-1/2-2x(1-x^2)^1/2)/x^4)
simplify((-x^3(1-x^2)^-1/2-2x(1-x^2)^1/2)/x^4)
Natural Language
Math Input
Extended Keyboard
