(({0,1}-{2,0}).({0,1}-{2,0}))-(({0,1}+3*{2,0}).({0,1}+3*{2,0}))

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.