document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=517791>Question 517791</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A rectangular swimming pool 10 feet by 28 feet is surrounded by a concrete walkway of uniform width of X feet.  If the area of the walkway is 864 square feet, find the width of the walkway. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344923 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=344923\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The pool has an area of 280 sq ft.<BR>\n" );
document.write( "(10+x)*(28+x)=280+864=1144<BR>\n" );
document.write( "(10+x)*(28+x)=1144<BR>\n" );
document.write( "x^2+38x+280 = 1144<BR>\n" );
document.write( "x^2+38x-864 = 0<BR>\n" );
document.write( "x=-54, x=16<BR>\n" );
document.write( "walkway is 16 ft wide<BR>\n" );
document.write( "check<BR>\n" );
document.write( "26*44=1144<BR>\n" );
document.write( "ok\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );