document.write( "Question 1198392: Solve X^2-4X+1=0 for X \n" ); document.write( "

Algebra.Com's Answer #831972 by Alan3354(69443) $\"\"$ $\"About$

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Solve X^2-4X+1=0 for X
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\n" ); document.write( "Using completion of the square and lower case x:
\n" ); document.write( "X^2-4X+1=0
\n" ); document.write( "x^2 - 4x = -1
\n" ); document.write( "Add 4
\n" ); document.write( "x^2 - 4x + 4 = 3
\n" ); document.write( "(x-2)^2 = 3
\n" ); document.write( " $\"x-2+=+sqrt%283%29\"$
\n" ); document.write( " $\"x+=+2+%2B+sqrt%283%29\"$
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\n" ); document.write( " $\"x-2+=+-sqrt%283%29\"$
\n" ); document.write( " $\"x+=+2+-+sqrt%283%29\"$ \n" ); document.write( "

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