document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=972058>Question 972058</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Fans can now have a better view of wolverine football, after the instillasion of 40% larger screens in Michigan stadium's end zones. Each screen covers 3995ft^2 of a new 6696 square foot scoreboard structure. \r<BR>\n" );
document.write( "\n" );
document.write( "A) the screen in Michigan Stadium is a rectangle with length 9ft less than twice its width. Find the length and width of the screen.<BR>\n" );
document.write( "B) the scoreboard structure is a rectangle with length 16ft less than twice its width. Find the length and width of the scoreboard.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #594459 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=594459\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> width= x  length is 2x-9\r<BR>\n" );
document.write( "\n" );
document.write( "Product is x(2x-9) = 3995 ft^2  ft *ft on the left, so units are fine.\r<BR>\n" );
document.write( "\n" );
document.write( "2x^2-9x-3995=0    factors are 799 and 5\r<BR>\n" );
document.write( "\n" );
document.write( "look at discriminant  b^2-4ac=32041, and perfect square of 179    (81+ 4*2*3995)\r<BR>\n" );
document.write( "\n" );
document.write( "x=-(1/4) {9+/- 179)<BR>\n" );
document.write( "negative answer not used.  (1/4) 188=47 That is width.  Length is 85.  product is 3995 ft^2\r<BR>\n" );
document.write( "\n" );
document.write( "Scoreboard structure<BR>\n" );
document.write( "x=width<BR>\n" );
document.write( "2x-16=length\r<BR>\n" );
document.write( "\n" );
document.write( "x(2x-16)=6696<BR>\n" );
document.write( "2x^2-16x-6696=0<BR>\n" );
document.write( "x^2-8x-3348=0  (divide by two)<BR>\n" );
document.write( "again, look at discriminant sqrt(b^2-4ac) =sqrt{ 64+ (4*3348)}=116<BR>\n" );
document.write( "x= (1/2) [8+116]  (negative root extraneous) =124<BR>\n" );
document.write( "width is 62<BR>\n" );
document.write( "length is 108<BR>\n" );
document.write( "product is 6696 ft^2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );