document.write( "Question 351641: A playing field has area 4700ft squared. it's length is 6ft less than twice its width. Give the dimensions of the playing field \n" ); document.write( "
Algebra.Com's Answer #252192 by sofiyac(983)\"\" \"About 
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Area=width*length
\n" ); document.write( "Let the width be x then length is 2x-6
\n" ); document.write( "\"4700=x%282x-6%29\"
\n" ); document.write( "\"4700=2x%5E2-6x%29\" subtract 4700 from each side
\n" ); document.write( "\"0=2x%5E2-6x-4700%29\" factor
\n" ); document.write( "\"0=%282x-100%29%28x%2B47%29\"
\n" ); document.write( "\"0=2x-100\" subtract 2x from each side
\n" ); document.write( "\"-2x=-100\"divide both sides by -2
\n" ); document.write( "\"x=50\" then length is 2*50-6=94
\n" ); document.write( "\"0=x%2B47\" subtract 47 from each side
\n" ); document.write( "\"-47=x\" length can't be negative, so we don't do anything with this answer\r
\n" ); document.write( "\n" ); document.write( "So the dimensions are width 50 and length 94
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