Question 991385
{{{(x^2-4x)+(y^2+10y)=3}}}
{{{(x^2-4x+4)+(y^2+10y+25)=3+4+25}}}
{{{(x-2)^2+(y+5)^2=32}}}
Center : ({{{2}}},{{{-5}}})
Radius : {{{sqrt(32)=4sqrt(2)}}}
*[illustration fd7.JPG].