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.
(3+4t)^2 + (6-3t)^2 -4(6-3t)-21 = 0
(3+4t)^2 + (6-3t)^2 -4(6-3t)-21 = 0
Natural Language
Math Input
Extended Keyboard