document.write( "Question 227287: f(x)= x^2-2x-1 luvly_lenz@yahoo.com \n" ); document.write( "

Algebra.Com's Answer #168950 by checkley77(12844) $\"\"$ $\"About$

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f(x)= x^2-2x-1
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "x=(2+-sqrt[-2^2-4*1*-1])/2*1
\n" ); document.write( "x=(2+-sqrt[4+4)/2
\n" ); document.write( "x=(2+-sqrt8)/2
\n" ); document.write( "x=(2+-2.828)2
\n" ); document.write( "x=2+2.828)/2
\n" ); document.write( "x=4.828/2
\n" ); document.write( "x=2.414 ans.
\n" ); document.write( "x=(2-2.828)/2
\n" ); document.write( "x=-.828/2
\n" ); document.write( "x=-.414 ans.
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