Question 854745
{{{x^2-16y^2-6x-128y-63=0}}}
{{{x^2-6x-16y^2-128y-63=0}}}
{{{(x^2-6x+9)-16(y^2+8y+16)-63-9+256=0}}}
{{{(x-3)^2-16(y+4)^2-63-9+184=0}}}
{{{(x-3)^2/184-(16/184)(y+4)^2+1=0}}}
{{{e=sqrt(a^2+b^2)/b}}}
{{{e=sqrt(184+(184/16))/(184/16)}}}
{{{e=1.22}}}