document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=70713>Question 70713</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Add or Subtract as indicated:  These are confusing to me. Please help!\r<BR>\n" );
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document.write( "(7x^2y-4xy+9xy^2)-(8x^2y+8xy+8xy^2) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #50555 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=50555\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%287x%5E2y-4xy%2B9xy%5E2%29-%288x%5E2y%2B8xy%2B8xy%5E2%29%29 ALIGN=MIDDLE  ALT=\"%28%287x%5E2y-4xy%2B9xy%5E2%29-%288x%5E2y%2B8xy%2B8xy%5E2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "[Start by trying to combine like-terms within the parenthesis)<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287x%5E2y-4xy%2B9xy%5E2-8x%5E2y-8xy-8xy%5E2%29 ALIGN=MIDDLE  ALT=\"%287x%5E2y-4xy%2B9xy%5E2-8x%5E2y-8xy-8xy%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "[There are not any like-terms so eliminate the parenthesis.  Multiply-through by the negative sign]<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%287x%5E2y-8x%5E2y-4xy-8xy%2B9xy%5E2-8xy%5E2%29 ALIGN=MIDDLE  ALT=\"%287x%5E2y-8x%5E2y-4xy-8xy%2B9xy%5E2-8xy%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "[Again, try to combine like-terms]<BR>\n" );
document.write( ".\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1x%5E2y-12xy%2B1xy%5E2%29 ALIGN=MIDDLE  ALT=\"%28-1x%5E2y-12xy%2B1xy%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-x%5E2y-12xy%2Bxy%5E2%29 ALIGN=MIDDLE  ALT=\"%28-x%5E2y-12xy%2Bxy%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > [All like-terms have been combined] </SPAN>\n" );
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