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.
2x^4 + 5x^3 + 3x^2 + 15x – 9 = 0
2x^4 + 5x^3 + 3x^2 + 15x – 9 = 0
Natural Language
Math Input
Extended Keyboard
