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.
factor z^4 - 2z^3 + 3z^2 - 2z + 2
factor z^4 - 2z^3 + 3z^2 - 2z + 2
Natural Language
Math Input
Extended Keyboard