document.write( "Question 331697: Hi; Can you show me how to work the following problem please?\r
\n" ); document.write( "\n" ); document.write( "The table used for table tennis is 4 ft longer that it is wide and has an area of 45 ft^2. What are the dimensions of the table?
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Algebra.Com's Answer #237808 by nerdybill(7384)\"\" \"About 
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The table used for table tennis is 4 ft longer that it is wide and has an area of 45 ft^2. What are the dimensions of the table?
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\n" ); document.write( "Let w = width of table
\n" ); document.write( "then because \"table tennis is 4 ft longer that it is wide\" we have
\n" ); document.write( "w+4 = length of table
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\n" ); document.write( "area = width * length
\n" ); document.write( "45 = w(w+4)
\n" ); document.write( "45 = w^2+4w
\n" ); document.write( "0 = w^2+4w-45
\n" ); document.write( "0 = (w+9)(w-5)
\n" ); document.write( "w = {-9,5}
\n" ); document.write( "Toss out negative solution leaving:
\n" ); document.write( "w = 5 ft
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\n" ); document.write( "Length:
\n" ); document.write( "w+4 = 5+4 = 9 ft
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\n" ); document.write( "dimensions are 5 feet by 9 feet
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