document.write( "Question 307925: x^2+y^2-8x-16y+44=0\r
\n" ); document.write( "\n" ); document.write( "i need to find the center and radius of this circle. \n" ); document.write( "
Algebra.Com's Answer #220201 by Alan3354(69443)\"\" \"About 
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x^2+y^2-8x-16y+44=0
\n" ); document.write( "i need to find the center and radius of this circle.
\n" ); document.write( "------------------------
\n" ); document.write( "Rearrange it into \"standard form\", (x-h)^2 + (y-k)^2 = r^2
\n" ); document.write( "\"x%5E2+-+8x+%2B+y%5E2+-16y+=+-44\"
\n" ); document.write( "Complete both squares for x and y
\n" ); document.write( "\"x%5E2+-+8x+%2B+16+%2B+y%5E2+-+16y+%2B+64+=+-44+%2B+16+%2B+64+=+36\"
\n" ); document.write( "\"%28x-4%29%5E2+%2B+%28y-8%29%5E2+=+6%5E2\"
\n" ); document.write( "---> center at (h,k) = (4,8)
\n" ); document.write( "radius = 6
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