Question 374186
{{{x^2+y^2-2x+6y-15=0}}}
{{{x^2-2x+y^2+6y-15=0}}}
{{{(x^2-2x+1)+(y^2+6y+9)-15=1+9}}}
{{{highlight((x-1)^2+(y+3)^2=25)}}}
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Center:({{{1}}},{{{-3}}})
Radius:{{{5}}}