document.write( "Question 1091100: A rectangle has a length of 38 yards less than four times it's width. The area of the rectangle is 840 yd.² find the length of the rectangle \n" ); document.write( "
Algebra.Com's Answer #705554 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! Let w be the width. Then the length would be 4w-38. So: \n" ); document.write( "w(4w-38)=840 \n" ); document.write( "4w²-38w-840=0 \n" ); document.write( "2w²-19w-420=0 \n" ); document.write( "(2w+21)(w-20)=0 \n" ); document.write( "w=-21/2 or 20 \n" ); document.write( "The width is 20; the length is 42 \n" ); document.write( "☺☺☺☺ \n" ); document.write( " |