document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=171345>Question 171345</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 6.	(-5x^3 + 2y^3) - (15x^3 - 7x^2y + 8xy^2 - 4y^3)  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #126597 by </B><A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><B>KnightOwlTutor(293)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KnightOwlTutor><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=KnightOwlTutor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=126597\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (-5x^3 + 2y^3) - (15x^3 - 7x^2y + 8xy^2 - 4y^3)\r<BR>\n" );
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document.write( "I would change the sign of all the terms after the negative sign<BR>\n" );
document.write( "- (15x^3 - 7x^2y + 8xy^2 - 4y^3)=(-15x^3+7x^2y-8xy^2+4y^3)\r<BR>\n" );
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document.write( "Then I would combine like signs.\r<BR>\n" );
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document.write( "(-5-15)x^3+7x^2y-8xy^2+(2+4)y^3=-20x^3+7x^2y-8xy^2+6y^3\r<BR>\n" );
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