document.write( "Question 143290: The area of a rectangular parcel of land is 720 square meters. The length of the land is 4 meters less than twice the width.
\n" ); document.write( "A. Write an equation that can be used to find the dimensions of the land.
\n" ); document.write( "B. Solve the equation written in part A to find the dimensions of the land.
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Algebra.Com's Answer #104282 by checkley77(12844)\"\" \"About 
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AREA=L*W
\n" ); document.write( "A) 720=(2W-4)W
\n" ); document.write( "B) 720=2W^2-4W
\n" ); document.write( "2W^2-4W-720=0
\n" ); document.write( "2(W^2-2W-360)=0
\n" ); document.write( "2(W-20)(W+18)=0
\n" ); document.write( "W-20=0
\n" ); document.write( "W=20 FOR THE WIDTH.
\n" ); document.write( "L=2*20-4
\n" ); document.write( "L=40-4
\n" ); document.write( "L=36 FOR THE LENGTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "20*36=720
\n" ); document.write( "720=720\r
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