document.write( "Question 1089210: The vertex of the parabola (x-y+1)^2=4*(x+y-5) is?
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Algebra.Com's Answer #706631 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "The vertex of the parabola (x-y+1)^2=4*(x+y-5) is?
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If you square (x - y + 1), you'll get \"matrix%281%2C3%2C+x%5E2%2C+and%2C+y%5E2%29\". 
\n" ); document.write( "A parabola does not contain x and y to the 2nd power. \n" ); document.write( "
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