document.write( "Question 353244: A room in a house is 8 feet longer than it is wide and has a an area of 180ft^2. Find the dimension
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Algebra.Com's Answer #252413 by ewatrrr(24785)![]() ![]() You can put this solution on YOUR website! Hi, \n" ); document.write( "*Note Area of a rectangle is l*w \n" ); document.write( "Let w be the width, then (w+ 8) is the length \n" ); document.write( ". \n" ); document.write( "w*(w + 8) = 180ft^2 \n" ); document.write( ". \n" ); document.write( "w^2 + 8w - 180ft^2 = 0 \n" ); document.write( ". \n" ); document.write( "factor \n" ); document.write( "(w - 10)(w + 18) = 0 \n" ); document.write( ". \n" ); document.write( "(w + 18) = 0 \n" ); document.write( "w = -18 (have no use this negative solution) \n" ); document.write( ". \n" ); document.write( "(w - 10) = 0 \n" ); document.write( "w = 10Ft \n" ); document.write( ". \n" ); document.write( "Length is (x+8) \n" ); document.write( "Length is 18ft \n" ); document.write( ". \n" ); document.write( "check your answer \n" ); document.write( "10ft*18ft = 180ft^2 \n" ); document.write( " |