document.write( "Question 46887: Solve by using the quadratic formula.\r
\n" ); document.write( "\n" ); document.write( "x^2 + x - 20 = 0\r
\n" ); document.write( "\n" ); document.write( "Thanks! \n" ); document.write( "

Algebra.Com's Answer #31102 by fractalier(6550) $\"\"$ $\"About$

You can put this solution on YOUR website!
Okay from
\n" ); document.write( "x^2 + x - 20 = 0
\n" ); document.write( "we get
\n" ); document.write( "x = (-1 ą sqrt(1 - (-80))) / 2
\n" ); document.write( "x = (-1 ą sqrt(81)) / 2
\n" ); document.write( "x = (-1 ą 9) / 2
\n" ); document.write( "x = -5 or 4 \n" ); document.write( "

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