Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Solving a equation of a circle

  1. Aug 9, 2012 #1
    Find the center and radius of the circle using the equation:

    x^2 + y^2 + 2√2x - 4√5y = 5

    I just cant seem to solve this equation into the form (x-h)^2 + (y-k)^2 = r^2 in order to get the center and radius.

    Any help would be appreciated
  2. jcsd
  3. Aug 9, 2012 #2
    You would need to show us what you have tried. First thing you do is group up the terms and complete the square.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook