document.write( "Question 211353: 2x^2-9x-1=o what is the answer using the quadratic formula \n" ); document.write( "

Algebra.Com's Answer #159709 by checkley77(12844) $\"\"$ $\"About$

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2x^2-9x-1=o
\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$
\n" ); document.write( "X=(9+-SQRT[-9^2-4*2*-1])/2*2
\n" ); document.write( "X=(9+-SQRT[81+8])/4
\n" ); document.write( "X=(9+-SQRT89)/4
\n" ); document.write( "X=(9+-9.43398)/4
\n" ); document.write( "X=(9+9.43398)/4
\n" ); document.write( "X=18.43398/4
\n" ); document.write( "X=4.6085 ANS.
\n" ); document.write( "X=(9-9.43398)/4
\n" ); document.write( "X=-.43398/4
\n" ); document.write( "X=-1.085 ANS.
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