document.write( "Question 918182: A rectangle is drawn so that the width is 4 feet shorter than the length. The area of the rectangle is 12 square feet. Find the length of the rectangle.
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Algebra.Com's Answer #556943 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "     .
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document.write( "L(L-4) = 12ft^2
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document.write( "L^2 - 4L - 12 = 0 (Tossing out the negative solution for unit measure)
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document.write( "(L+2)(L-6) = 0
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document.write( "L = 6ft
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document.write( "And...checking
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document.write( "(6ft)(2ft) = 12ft^2 \n" );
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