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+1)(x+2)(x+3)(x+4)(x+5)=(x-5)(x+6)(x+7)(x+8)(x+9)
(x+1)(x+2)(x+3)(x+4)(x+5)=(x-5)(x+6)(x+7)(x+8)(x+9)
Natural Language
Math Input
Extended Keyboard