document.write( "Question 420301: I need help solving this quadratic equation and leaving it in radical form I don't know how to set it to zero? I know how to use the quadratic formula so I need help on how to set the equation to zero so I can solve using the quadratic formula? (x+8)(x-4)=-3(2x+5) thank you for your help \n" ); document.write( "
Algebra.Com's Answer #293734 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
(x+8)(x-4)=-3(2x+5)\r
\n" ); document.write( "\n" ); document.write( "x^2-4x+8x-32=-6x-15
\n" ); document.write( "x^2+4x-32+6x+15=0
\n" ); document.write( "x^2+10x-17=0\r
\n" ); document.write( "\n" ); document.write( "Find the roots of the equation by quadratic formula\r
\n" ); document.write( "\n" ); document.write( "a= 1 , b =10 , c =-17 .\r
\n" ); document.write( "\n" ); document.write( "b^2-4ac=168\r
\n" ); document.write( "\n" ); document.write( "\"x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x1=%28-10%2Bsqrt%28168%29%29%2F%282%29\"
\n" ); document.write( "x1=1.48
\n" ); document.write( "...
\n" ); document.write( "\"x2=%28-10-sqrt%28168%29%29%2F%282%29\"
\n" ); document.write( "x2=-11.48
\n" ); document.write( "
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