document.write( "Question 473123: The length of a table is 3 m greater than the width. The area is 70 m^2. Find the dimensions of the table \n" ); document.write( "
Algebra.Com's Answer #324410 by sofiyac(983)\"\" \"About 
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width is x
\n" ); document.write( "length is x+3
\n" ); document.write( "area=length*width
\n" ); document.write( "70=x(x+3)
\n" ); document.write( "70=x^2+3x
\n" ); document.write( "0=x^2+3x-70
\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"
\n" ); document.write( "\"x+=+%28-3+%2B-+sqrt%28+9%2B280+%29%29%2F%282%29+\"
\n" ); document.write( "\"x+=+%28-3+%2B-+sqrt%28+289+%29%29%2F2+\"
\n" ); document.write( "\"x+=+%28-3+%2B-+17%29%2F2+\"
\n" ); document.write( "measure can't be negative for length and width so we have to go with + option
\n" ); document.write( "\"x+=+%28-3+%2B+17%29%2F2+\"
\n" ); document.write( "\"x+=+14%2F2+\" \r
\n" ); document.write( "\n" ); document.write( "\"x+=+7+\"
\n" ); document.write( "so width is 7, then length is 7+3=10
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