document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=363806>Question 363806</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x^2/3 - x^1/3 - 20 = 0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #259451 by </B><A HREF=/tutors/aboutme.mpl?userid=amoresroy><B>amoresroy(361)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amoresroy><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=amoresroy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=259451\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^2/3 - x^1/3 - 20 = 0\r<BR>\n" );
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document.write( "Let y = x^1/3\r<BR>\n" );
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document.write( "Substitute x^1/3 = y \r<BR>\n" );
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document.write( "y2 - y - 20 = 0\r<BR>\n" );
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document.write( "Solve by factoring\r<BR>\n" );
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document.write( "(y-5) (y+4) = 0\r<BR>\n" );
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document.write( "y-5 = 0\r<BR>\n" );
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document.write( "y = 5\r<BR>\n" );
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document.write( "Since y = x^1/3<BR>\n" );
document.write( "Then x^1/3 = 5\r<BR>\n" );
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document.write( "Raise both sides by exponent 3 to get x\r<BR>\n" );
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document.write( "      [x^1/3 = 5]^3<BR>\n" );
document.write( "          x  = 5*5*5<BR>\n" );
document.write( "          x  = 125 </SPAN>\n" );
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