document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=344685>Question 344685</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a+b=9 and a^3+b^3=351, find the numerical value of ab </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #246633 by </B><A HREF=/tutors/aboutme.mpl?userid=Jk22><B>Jk22(389)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Jk22><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=Jk22><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=246633\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (a+b)^3=a^3+3a^2b+3ab^2+b^3=351+3ab(a+b)=351+3ab*9=9^3=81*9=729<BR>\n" );
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document.write( "hence 27ab=729-351=378 <BR>\n" );
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document.write( "ab=126/9=42/3=14 </SPAN>\n" );
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