document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1129788>Question 1129788</A>: <I><SPAN STYLE=\"word-break: break-all;\"> prove that ncr+2[ncr-1]+ncr+2=n+2cr+2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #746417 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=746417\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Thanks but no thanks for not using parentheses so we have to try to figure out what the problem says....<br><BR>\n" );
document.write( "The most likely meaning I can see for the statement we are to prove is<br><BR>\n" );
document.write( "C(n,r)+2C(n,r-1)+C(n,r+2) = C(n+2,r+2)<br><BR>\n" );
document.write( "In that case, it can't be proved, because it is not true.  Almost any (or perhaps any) choices for n and r will show the statement to be false. </SPAN>\n" );
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