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.
solve a_2−a_2−a_1−2a_1=n^2−(3−n^2), a_2=n^2+a_1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random