document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=193313>Question 193313</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I HAVE A PLACEMENT TEST AND THIS QUESTION IS TOUGH FOR ME HOW DO I ANSWER<BR>\n" );
document.write( "2X^2+3XY-4Y^2 WHEN X=2 AND Y=-4 I HAVE TRIED MANY TIMES BUT I CANNOT FIGURE IT OUT!! PLEASE HELP ME SO I PASS THIS TEST!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #145122 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=145122\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Given:<BR>\n" );
document.write( "2X^2+3XY-4Y^2 WHEN X=2 AND Y=-4<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Plug in the given values and evaluate:<BR>\n" );
document.write( "2(2)^2+3(2)(-4)-4(-4)^2<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Evaluate using the order of precedence.  <BR>\n" );
document.write( "Exponents are first:<BR>\n" );
document.write( "2(4)+3(2)(-4)-4(16)<BR>\n" );
document.write( "Multiplication next -- left to right:<BR>\n" );
document.write( "8-24-64<BR>\n" );
document.write( "Addition/subtraction --left to right:<BR>\n" );
document.write( "-16-64<BR>\n" );
document.write( "Finally:<BR>\n" );
document.write( "-80\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );