document.write( "Question 116304: Please help me with this confusing question. I have tried and I just can't seem to figure it out. PLEASE HELP ME!!!! Here is the question:
\n" ); document.write( " What is The area of a rectangle is 24 square meters. Find the length and width of the rectangle if its length is 2 meters greater than its width. Use an equation and the formula ® area of a rectangle = (width)(length).\r
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Algebra.Com's Answer #84580 by bucky(2189)\"\" \"About 
You can put this solution on YOUR website!
Start with the equation for the area of a rectangle ...
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\n" ); document.write( "Area = width*length
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\n" ); document.write( "or for short:
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\n" ); document.write( "A = W * L
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\n" ); document.write( "You are told that the area is 24 square meters, so substitute 24 for A to get:
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\n" ); document.write( "24 = W * L
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\n" ); document.write( "Next you are told that the length L is equal to the Width plus 2 meters. In equation form
\n" ); document.write( "this is:
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\n" ); document.write( "L = W + 2
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\n" ); document.write( "Return to the area equation and substitute W + 2 for L and you have:
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\n" ); document.write( "24 = W * (W + 2)
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\n" ); document.write( "Note that this equation has only 1 variable ... W. Since it only has one variable,
\n" ); document.write( "we have a chance of solving it. Begin by multiplying out the right side:
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\n" ); document.write( "24 = W^2 + 2W
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\n" ); document.write( "Get this into standard quadratic form by subtracting 24 from both sides to get:
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\n" ); document.write( "0 = W^2 + 2W - 24
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\n" ); document.write( "Transpose (switch) the sides of the equation to get it into the more familiar form:
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\n" ); document.write( "W^2 + 2W - 24 = 0
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\n" ); document.write( "Factor the left side:
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\n" ); document.write( "(W + 6)*(W - 4) = 0
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\n" ); document.write( "This equation will be true if one of the factors equals zero because a multiplication
\n" ); document.write( "by zero on the left side will make the left side equal zero and therefore equal the zero on the
\n" ); document.write( "right side. So set each factor equal to zero and solve for the value of W.
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\n" ); document.write( "W + 6 = 0
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\n" ); document.write( "Subtract 6 from both sides and you get W = -6. But this doesn't make sense ... a negative width???
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\n" ); document.write( "Set the other factor equal to zero:
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\n" ); document.write( "W - 4 = 0
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\n" ); document.write( "Add 4 to both sides and you get W = 4. That makes sense. The width is 4 meters and since
\n" ); document.write( "the length is 2 meters longer than the width, the length is 6 meters. If you multiply the
\n" ); document.write( "width (4) times the length (6) you get 24 square meters, so that checks.
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\n" ); document.write( "The answers are length = 6 meters and width = 4 meters.
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\n" ); document.write( "Hope this helps you to understand the problem.
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