Question 1157993
<pre>
{{{ (x^2-6x+9) + (y^2+2y+1) = 25 }}}
{{{ (x-3)^2 + (y+1)^2 = 5^2 }}}

Compare this to the standard form of the equation of a circle:
{{{ (x-x[0])^2 + (y-y[0])^2 = r^2 }}}
where the center is at ({{{x[0]}}},{{{y[0]}}}) :

Center at (3,-1), r=5