document.write( "Question 449819: The length of a rectangular gym is 8 meters less than 3 times it's width. Find the dimensions is the area of the gym is 336 square meters. \r
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document.write( "^^ I do not understand how to set up the equation. \n" );
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Algebra.Com's Answer #309389 by mananth(16946)![]() ![]() You can put this solution on YOUR website! width=x \n" ); document.write( "length = 3x-8\r \n" ); document.write( "\n" ); document.write( "Area = L*W\r \n" ); document.write( "\n" ); document.write( "x(3x-8)=336 \n" ); document.write( "3x^2-8x=336 \n" ); document.write( "3x^2-8x-336=0\r \n" ); document.write( "\n" ); document.write( "Find the roots of the equation by quadratic formula \n" ); document.write( " \n" ); document.write( "a= 3 ,b= -8 ,c= -336 \n" ); document.write( " \n" ); document.write( "b^2-4ac=64-4032 \n" ); document.write( "b^2-4ac=4096 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "x1=(8+64)/6 \n" ); document.write( "x1=12 \n" ); document.write( "x2=(8-64)/6 \n" ); document.write( "x2= -9.33 \n" ); document.write( "Ignore negative value \n" ); document.write( "width = 12 \n" ); document.write( "length = 3x-8===>28 \n" ); document.write( " \n" ); document.write( " |