document.write( "Question 1136678: The number of real roots of the equation x^2-4x+4=0 is\r
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Algebra.Com's Answer #754484 by ikleyn(52778)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "2 roots merged in 1.\r
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\n" ); document.write( "\n" ); document.write( "Or one root of multiplicity of 2.\r
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