document.write( "Question 75929: A rectangle is 6 meters longer than it is wide. The area fo the rectangle is 315 sqaure meters. Find the length. \n" ); document.write( "
Algebra.Com's Answer #54513 by Kari(1)\"\" \"About 
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area=l*w
\n" ); document.write( "315=x*(x+6)
\n" ); document.write( "315=x^2+6x
\n" ); document.write( "x^2+6x-315=0
\n" ); document.write( "(x-15)(x+21)=0
\n" ); document.write( "x-15=0
\n" ); document.write( "x=15 answer for the short side
\n" ); document.write( "15+6=21 for the long side
\n" ); document.write( "proof
\n" ); document.write( "15*21=315
\n" ); document.write( "315=315
\n" ); document.write( "
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