document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=821959>Question 821959</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 108 feet of fencing to enclose a rectangular plot that borders on a river.  If you do not fence the side along the river, find the length and width of the plot that will maximize the area.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #494510 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=494510\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ---<BR>\n" );
document.write( "2x + y = 108<BR>\n" );
document.write( "y = -2x + 108<BR>\n" );
document.write( "a = xy<BR>\n" );
document.write( "---<BR>\n" );
document.write( "a = xy<BR>\n" );
document.write( "a(x) = x(-2x + 108)<BR>\n" );
document.write( "a(x) = -2xx + 108x<BR>\n" );
document.write( "---<BR>\n" );
document.write( "the above quadratic equation is in standard form, with a=-2, b=108, and c=0<BR>\n" );
document.write( "---<BR>\n" );
document.write( "to solve the quadratic equation, by using the quadratic formula, copy and paste this:<BR>\n" );
document.write( "-2 108 0<BR>\n" );
document.write( "into this solver: https://sooeet.com/math/quadratic-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "the quadratic vertex is a maximum at: ( x= 27, a(x)= 1458 )<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x= width = 27 ft<BR>\n" );
document.write( "y= length = 54 ft<BR>\n" );
document.write( "maximum area = 1458 sq.ft<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve systems of linear equations up to 6-equations 6-variables:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );