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.
-20x^2 - 400x -1997 = -20(x + 10)^2 +3
-20x^2 - 400x -1997 = -20(x + 10)^2 +3
Natural Language
Math Input
Extended Keyboard