document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151302>Question 151302</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a rectangle has length x+5 and width x-7.  Find the area, A, of the rectangle in terms of x.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111217 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=111217\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a rectangle has length x+5 and width x-7.  Find the area, A, of the rectangle in terms of x.<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Since we know that for any rectangle:<BR>\n" );
document.write( "area = length * width<BR>\n" );
document.write( ".<BR>\n" );
document.write( "The problem gives us:<BR>\n" );
document.write( "length = (x+5)<BR>\n" );
document.write( "width = (x-7)<BR>\n" );
document.write( "area = A<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Plug the above into:<BR>\n" );
document.write( "area = length * width<BR>\n" );
document.write( "A = (x+5)(x-7)<BR>\n" );
document.write( "Applying \"FOIL\" to the right side:<BR>\n" );
document.write( "A = x^2 - 7x + 5x - 35<BR>\n" );
document.write( "A = x^2 - 2x- 35 (this is what they are looking for)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );