document.write( "Question 386060: The length of a rectangular frame is 12 inches more than twice the width. The area inside the frame is 1040 square inches. Find the dimension of the frame.
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Algebra.Com's Answer #273001 by JimboP1977(311)![]() ![]() You can put this solution on YOUR website! Length = L \n" ); document.write( "Width = W\r \n" ); document.write( "\n" ); document.write( "L+12 = 2W \n" ); document.write( "L x W = 1040 \n" ); document.write( "(2W-12) x W = 1040 \n" ); document.write( "2W^2 -12W = 1040\r \n" ); document.write( "\n" ); document.write( "W^2 - 6W = 520\r \n" ); document.write( "\n" ); document.write( "(W-3)^2 - 9 = 520\r \n" ); document.write( "\n" ); document.write( "W = 529^(1/2) + 3\r \n" ); document.write( "\n" ); document.write( "W = 26\r \n" ); document.write( "\n" ); document.write( "L = 40\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |