Question 188066
{{{4(x^2-2x)+y^2=0}}}
:
{{{4(x-1)^2+y^2-4=0}}}
:
{{{4(x-1)^2+y^2=4}}}
:
{{{(x-1)^2+y^2/4=1}}}
:
center is a(1,0)