document.write( "Question 761135: The width of a room is 4m less than the length, if the area is 45sq meters, find the dimension of the room \n" ); document.write( "
Algebra.Com's Answer #463050 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Length = x
\n" ); document.write( "Width = x - 4
\n" ); document.write( "Area = length * width
\n" ); document.write( "x(x - 4) = 45
\n" ); document.write( "x^2 - 4x = 45
\n" ); document.write( "x^2 - 4x - 45 = 0
\n" ); document.write( "(x - 9)(x + 5) = 0
\n" ); document.write( "x = -5 (no answer)
\n" ); document.write( "x = 9
\n" ); document.write( "Length = 9m
\n" ); document.write( "Width = 5m
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "
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