document.write( "Question 380260: solve for x.
\n" ); document.write( "4x(x-8)-5x(x-7)=-4 \n" ); document.write( "

Algebra.Com's Answer #269858 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
solve for x.
\n" ); document.write( "4x(x-8)-5x(x-7)=-4
\n" ); document.write( "4x^2-8x-5x^2+35x = -4
\n" ); document.write( "------
\n" ); document.write( "-x^2+17x = -4
\n" ); document.write( "----
\n" ); document.write( "x^2-17x-4 = 0
\n" ); document.write( "---
\n" ); document.write( "x = [17+-sqrt(17^2-4*1*-4)]/2
\n" ); document.write( "---
\n" ); document.write( "x = [17 +- sqrt(305)]/2
\n" ); document.write( "---
\n" ); document.write( "x = [17 +- 17.46]/2
\n" ); document.write( "----
\n" ); document.write( "x = 17.23 or x = -0.23
\n" ); document.write( "==============================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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