Question 382968
Complete the square in x and y.
{{{7x^2+7y^2-98x-112y+679=0}}}
{{{(x^2-14x)+(y^2-16y)+97=0}}}
{{{(x^2-14x+49)+(y^2-16y+64)+97=49+64}}}
{{{(x-7)^2+(y-8)^2=13}}}
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Center:({{{7}}},{{{8}}})