Solving a equation of a circle

[mrpk]

Find the center and radius of the circle using the equation:

x^2 + y^2 + 2√2x - 4√5y = 5

I just can't 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

 

[Ivan92]

You would need to show us what you have tried. First thing you do is group up the terms and complete the square.