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.
true or false (x+4)(x-10)(x-15)=x^3-21x^2+130x+600
true or false (x+4)(x-10)(x-15)=x^3-21x^2+130x+600
Natural Language
Math Input
Extended Keyboard