document.write( "Question 838411: A rectangular piece of metal has an area of 18 square centimeters. Its perimeter is 18 centimeters. What are the dimensions of the piece? \n" ); document.write( "
Algebra.Com's Answer #505107 by edjones(8007)\"\" \"About 
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L*w=18
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\n" ); document.write( "2L+2w=18
\n" ); document.write( "2L=18-2w
\n" ); document.write( "L=9-w
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\n" ); document.write( "w(9-w)=18
\n" ); document.write( "9w-w^2=18
\n" ); document.write( "w^2-9w+18=0
\n" ); document.write( "(w-6)(w-3)=0
\n" ); document.write( "L=6 and w=3 or vice versa.
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