document.write( "Question 1139590: What is the result of isolating x^2 in the equation? (x+1)^2+(y-8)^2=9
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document.write( "A.x^2 = -y^2 - 2x + 16y - 56
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document.write( "B.x^2=y^2+56
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document.write( "C.x^2=y^2+2x+16y+56
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document.write( "D.x^2=-y^2-56 \n" );
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Algebra.Com's Answer #760064 by Theo(13342)![]() ![]() You can put this solution on YOUR website! start with (x+1)^2 + (y-8)^2 = 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "simplify to get x^2 + 2x + 1 + y^2 - 16y + 64 = 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "combine like terms to get x^2 + 2x + y^2 - 16y + 65 = 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtract 65 from both sides of the equation to get x^2 + 2x + y^2 - 16y = -56\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtract 2x from both sides of the equation and subtract y^2 from both sides of the equation and add 16y to both sides of the equation to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2 = -56 - 2x - y^2 + 16y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "rearrange the terms in descending order of degree, with the x variable shown before the y variable when the degree is the same, to get:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2 = -y^2 - 2x + 16y - 56\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "that looks a lot like selection A, which is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2 = -y^2 - 2x + 16y - 56\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |