document.write( "Question 1149711: The length of a rectangular driveway is four feet less than five times the width. The area is 672ft^2. Find the width and length of the driveway. \n" ); document.write( "

Algebra.Com's Answer #771058 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The area  L*W = 672.\r\n" );
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document.write( "    L = 5W-4\r\n" );
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document.write( "The area  (5W - 4)*W = 672.\r\n" );
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document.write( "    -4W + 5W^2 = 672\r\n" );
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document.write( "    5W^2 - 4W - 672 = 0.\r\n" );
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document.write( "Solve this quadratic equation using the quadratic formula.\r\n" );
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