document.write( "Question 1026930: The temperature of a point (x,y) in the plane is given by the expression x^2 + y^2 - 4x + 2y. What is the temperature of the coldest point in the plane?
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Algebra.Com's Answer #642255 by ikleyn(52781)\"\" \"About 
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\n" ); document.write( "The temperature of a point (x,y) in the plane is given by the expression x^2 + y^2 - 4x + 2y. What is the temperature of the coldest point in the plane?
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\n" ); document.write( "\n" ); document.write( "It was just solved before in
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