document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=169916>Question 169916</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I know I already asked for help on similar problems, but this one is sorta really confusing me;<BR>\n" );
document.write( "   (I should subtract it)\r<BR>\n" );
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document.write( "  2x^2y-5xy^2+2<BR>\n" );
document.write( "- -x^2y+2xy^2+2<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "(it would be sorta embarrassing to write my answer, cause once I over read it, it only made less sense lol)\r<BR>\n" );
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document.write( "and maybe someone could help me with this little one as well;\r<BR>\n" );
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document.write( "  6x+9<BR>\n" );
document.write( "- 2x+4<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "  4x+5 < my wrong answer \r<BR>\n" );
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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 #125352 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20056)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=125352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I know I already asked for help on similar problems,<BR>\n" );
document.write( " but this one is sorta really confusing me;<BR>\n" );
document.write( "   (I should subtract it)<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><font size = 4 color = \"indigo\"><b>\r\n" );
document.write( "To subtract, rewrite the problem as an addition\r\n" );
document.write( "by changing all the signs on the second row.  \r\n" );
document.write( "Then add.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "  2x^2y - 5xy^2 + 2\r\n" );
document.write( "- -x^2y + 2xy^2 + 2\r\n" );
document.write( "-------------------\r\n" );
document.write( "\r\n" );
document.write( "Since it's SUBTRACT, you rewrite the problem\r\n" );
document.write( "as an addition by changing all the signs on the \r\n" );
document.write( "second row, and put a 1 in front of the x^2y:\r\n" );
document.write( "\r\n" );
document.write( "  2x^2y - 5xy^2 + 2\r\n" );
document.write( "+ 1x^2y - 2xy^2 - 2\r\n" );
document.write( "-------------------\r\n" );
document.write( "\r\n" );
document.write( "Now add the 2x^2y and the 1x^2y and get 3x^2y:\r\n" );
document.write( "\r\n" );
document.write( "  2x^2y - 5xy^2 + 2\r\n" );
document.write( "+ 1x^2y - 2xy^2 - 2\r\n" );
document.write( "-------------------\r\n" );
document.write( "  3x^2y\r\n" );
document.write( "\r\n" );
document.write( "Now add the second column -5xy^2 and -2xy^2 and get\r\n" );
document.write( "-7xy^2\r\n" );
document.write( "\r\n" );
document.write( "  2x^2y - 5xy^2 + 2\r\n" );
document.write( "+ 1x^2y - 2xy^2 - 2\r\n" );
document.write( "-------------------\r\n" );
document.write( "  3x^2y - 7xy^2\r\n" );
document.write( "\r\n" );
document.write( "Now add the third column +2 and -2 and get 0. So\r\n" );
document.write( "\r\n" );
document.write( "  2x^2y - 5xy^2 + 2\r\n" );
document.write( "+ 1x^2y - 2xy^2 - 2\r\n" );
document.write( "-------------------\r\n" );
document.write( "  3x^2y - 7xy^2 + 0\r\n" );
document.write( "\r\n" );
document.write( "You really don't have to write the + 0. The \r\n" );
document.write( "answer is 3x^2y - 7xy^2 \r\n" );
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document.write( "-----------------\r\n" );
document.write( "</b></PRE></font><BR>\n" );
document.write( "and maybe someone could help me with this little one as well;<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\"><font size = 4 color = \"indigo\"><b>\r\n" );
document.write( "  6x + 9\r\n" );
document.write( "- 2x + 4\r\n" );
document.write( "---------\r\n" );
document.write( " \r\n" );
document.write( "Since it is subtract, you change all the signs on\r\n" );
document.write( "the second row:\r\n" );
document.write( "\r\n" );
document.write( "  6x + 9\r\n" );
document.write( "+-2x - 4\r\n" );
document.write( "--------- \r\n" );
document.write( "\r\n" );
document.write( "Now add the 6x and the -2x and get 4x:\r\n" );
document.write( "\r\n" );
document.write( "  6x + 9\r\n" );
document.write( "+-2x - 4\r\n" );
document.write( "--------- \r\n" );
document.write( "  4x\r\n" );
document.write( "\r\n" );
document.write( "Now add the +9 and the -4 and get +5:\r\n" );
document.write( "\r\n" );
document.write( "  6x + 9\r\n" );
document.write( "+-2x - 4\r\n" );
document.write( "--------- \r\n" );
document.write( "  4x + 5\r\n" );
document.write( "\r\n" );
document.write( "Edwin</PRE><BR>\n" );
document.write( "</b></pre></font><BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );