document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=457779>Question 457779</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have another difficult problem<BR>\n" );
document.write( "x^2/3-3x ^1/3-4=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #314032 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=314032\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sub u for x^(1/3)<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "u^2 - 3u - 4 = 0<BR>\n" );
document.write( "(u-4)*(u+1) = 0<BR>\n" );
document.write( "u = -1, 4<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "x^(1/3) = -1<BR>\n" );
document.write( "x = -1<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "x^(1/3) = 4<BR>\n" );
document.write( "x = 64<BR>\n" );
document.write( "Not that hard, just a bit tricky. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );