document.write( "Question 252683: If x^2 + y^2 = 2xy, then x must equal ?\r
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Algebra.Com's Answer #184699 by Alan3354(69443)\"\" \"About 
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If x^2 + y^2 = 2xy, then x must equal ?
\n" ); document.write( "A) –1 B) 0 C) 1 D) –y E) y
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\n" ); document.write( "x^2 - 2xy + y^2 = 0
\n" ); document.write( "(x-y)^2 = 0
\n" ); document.write( "x = y
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