document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=326189>Question 326189</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me find the first three terms in this expansion:<BR>\n" );
document.write( "(x+3y)^20 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #233540 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=233540\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> find the first three terms in this expansion:<BR>\n" );
document.write( "(x+3y)^20 = x^20 + 20C19*x^19(3y) + 20C18*x^18(3y)^2 +....<BR>\n" );
document.write( "= x^20 + 20*3 x^19y + 180*9 x^18y^2.....<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= x^20 + 60x^19h + 1620x^18y^2....\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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