Let Live search do your algebra

This was a just a random try. For some reason i was searching in live.com. Actually the computer i was using in my college library had live.com as the default page.
But i just though of entering an algebraic expression in the live search bar and i was astonished to see that it actually computed the result. But this is not possible in google. Anyways nothing great to blah blah about coz it just computes for one variable. I just wanted to share with you. Try it out!!
Expecting google to implement the same feature soon.:-)