document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=843467>Question 843467</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the area of a rectangle with a width of 3x-4 and a length of 7x+3.\r<BR>\n" );
document.write( "\n" );
document.write( "This is what I have:<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%283x-4%29%5E2%287x%2B3%29%5E2%29 ALIGN=MIDDLE  ALT=\"+%283x-4%29%5E2%287x%2B3%29%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I worked it this way:<BR>\n" );
document.write( "   <BR>\n" );
document.write( "           (3x)^2-(4)^2 + (7x)^2 + 3^2<BR>\n" );
document.write( "            9x+16+49x+9<BR>\n" );
document.write( "             58x+25<BR>\n" );
document.write( "               x= -33\r<BR>\n" );
document.write( "\n" );
document.write( "Is this correct or where am I making my mistake? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508134 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=508134\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> hi there,<BR>\n" );
document.write( "Area of rectangle = length * width<BR>\n" );
document.write( "Area of rectangle = (7x + 3)*(3x - 4)<BR>\n" );
document.write( "Area of rectangle = 21x^2 - 28x + 9x - 12<BR>\n" );
document.write( "Area of rectangle = 21x^2 - 19x - 12<BR>\n" );
document.write( "You cannot find an answer for x unless you are given the actual area.<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );