document.write( "Question 973674: Write the standard form of the equation by completing the square. Then, identify the conic section represented.\r
\n" ); document.write( "\n" ); document.write( "x^2+y^2+2x-4y-31=0\r
\n" ); document.write( "\n" ); document.write( "I tried factoring it, but it's not working
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Algebra.Com's Answer #595774 by Boreal(15235)\"\" \"About 
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x^2+y^2+2x-4y-31=0
\n" ); document.write( "x^2+2x + ;;; +y^2 +4y+ ;; =31\r
\n" ); document.write( "\n" ); document.write( "x^2 +2x+1 + Y^2 -4y +4 = 31+5
\n" ); document.write( "(x+1)^2 + (y-2)^2=36\r
\n" ); document.write( "\n" ); document.write( "This is a circle with radius 6 and center (-1,2)\r
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