document.write( "Question 272913: solve by using the quadratic formula\r
\n" ); document.write( "\n" ); document.write( "x2+5x-36=0
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Algebra.Com's Answer #199469 by checkley77(12844)\"\" \"About 
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x2+5x-36=0
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( "x=(-5+-sqrt[5^2-4*1*-36])/2*1
\n" ); document.write( "x=(-5+-sqrt25+144)/2
\n" ); document.write( "x=(-5+-sqrt169)/2
\n" ); document.write( "x=(-5+-13)/2
\n" ); document.write( "x=(-5+13)/2
\n" ); document.write( "x=8/2
\n" ); document.write( "x=4 ans.
\n" ); document.write( "x=(-5-13)/2
\n" ); document.write( "x=-18/2
\n" ); document.write( "x=-9 ans.
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