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.
(x^2-9x-1)^{10} + 99x^{10} = 10x^{9} \cdot (x^2-1)
(x^2-9x-1)^{10} + 99x^{10} = 10x^{9} \cdot (x^2-1)
Natural Language
Math Input