document.write( "Question 1179740: the length of a rectangular lot is 4m longer than the width. if the area of the lot is 12 m, what are its dimensions \n" ); document.write( "

Algebra.Com's Answer #809314 by ikleyn(52814) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "the length of a rectangular lot is 4m longer than the width. if the area of the lot is 12 $\"highlight%28cross%28m%29%29\"$ square meters,
\n" ); document.write( "what are its dimensions
\n" ); document.write( "~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "ANSWER.   6 meters by 2 meters.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "EXPLANATION.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The equation is\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    x*(x+4) = 12\r\n" );
document.write( "\r\n" );
document.write( "    x^2 + 4x - 12 = 0\r\n" );
document.write( "\r\n" );
document.write( "    (x+6)*(x-2) = 0\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "The roots of the equation are  x= -6  and  x= 2.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Of the two roots, we chose the positive one   x= 2 meters,\r\n" );
document.write( "\r\n" );
document.write( "which gives the answer above.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );