document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151750>Question 151750</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A landscaper wants to enclose a 90ft by 120ft rectangle with a walk of uniform width. He wants to use a supply of crushed rock that will cover 1744 square feet of walk. How wide should he make the walk? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111559 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=111559\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 90*120=10,800ft^2 for the rectangle.<BR>\n" );
document.write( "(90+2x)(120+2x)=10,800+1744<BR>\n" );
document.write( "10,800+240x+180x+4x^2=12,544<BR>\n" );
document.write( "4x^2+420x+10,800-12,544=0<BR>\n" );
document.write( "4x^2+420x-1,744=0<BR>\n" );
document.write( "4(x^2+105x-436)=0<BR>\n" );
document.write( "(x+109)(x-4)=0<BR>\n" );
document.write( "x-4=0<BR>\n" );
document.write( "x=4 ft is the width of the walk.<BR>\n" );
document.write( "proof:<BR>\n" );
document.write( "(90+2*4)(120+2*4)=12,544<BR>\n" );
document.write( "98*128=12,544<BR>\n" );
document.write( "12,544=12,544<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );