Question 372504
Complete the square in x and y.
{{{x^2+16x+y^2+10y+53=0}}}
{{{(x^2+16x+64)+(y^2+10y+25)+53=64+25}}}
{{{(x+8)^2+(y+5)^2+53=89}}}
{{{highlight((x+8)^2+(y+5)^2=36)}}}