document.write( "Question 868711: X squared +4y squared-4x+8y=0
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Algebra.Com's Answer #523755 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi
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document.write( "x^2 -4x + 4y^2 + 8y
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document.write( "\"%28x-2%29%5E2+%2B+4%28y%2B1%29%5E2+=+8\"
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document.write( "\"%28x-2%29%5E2%2F8+%2B+%28y%2B1%29%5E2%2F2+=+1\"
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document.write( "C(2,-1)
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document.write( "sqrt(8-2) = √6
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document.write( "Foci are: (2-√6, -1) and (2+√6, -1) \n" );
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