<PRE><B>Question 709763</B>
4x^2-2y+8x+4y^2-7=0 find centre of circle radius and graph it
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4x^2-2y+8x+4y^2-7=0
Complete the square for x &amp; y
x^2 - y/2 + 2x + y^2 = 7/4
{{{x^2+2x + y^2-y/2 = 7/4}}}
{{{x^2+2x+1 + y^2-y/2+1/4 = 7/4 + 1 + 1/4 = 3}}}
{{{(x+1)^2 + (y-1/2)^2 = 3}}}
Can you finish it?
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