document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=257246>Question 257246</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have gotten all my questions right in the Lesson except for this one.I'm not sure why this one seems so hard to me, I'm not even sure how to start. Any help is greatly appreciated.<BR>\n" );
document.write( "The Problem: (-3125a5)^(2/5) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #189185 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=189185\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> So what did you try?<BR>\n" );
document.write( "We can't tell you how you went wrong if we don't know what you tried.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-3125a5%29%5E%282%2F5%29 ALIGN=MIDDLE  ALT=\"%28-3125a5%29%5E%282%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Let's look at the exponent part\r<BR>\n" );
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document.write( "we have     <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%5E5%29%5E%282%2F5%29=a%5E%285%2A2%2F5%29=a%5E2 ALIGN=MIDDLE  ALT=\"%28a%5E5%29%5E%282%2F5%29=a%5E%285%2A2%2F5%29=a%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "and       <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3125%5E%282%2F5%29 ALIGN=MIDDLE  ALT=\"3125%5E%282%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=25<BR>\n" );
document.write( "but we have the -1 to deal with<BR>\n" );
document.write( "and     <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%5E2=1 ALIGN=MIDDLE  ALT=\"%28-1%29%5E2=1\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "   and     <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%29%5E%281%2F5%29 ALIGN=MIDDLE  ALT=\"%281%29%5E%281%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >=1\r<BR>\n" );
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document.write( "      so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%5E%282%2F5%29 ALIGN=MIDDLE  ALT=\"%28-1%29%5E%282%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > =1\r<BR>\n" );
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document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2A1%2Aa%5E2 ALIGN=MIDDLE  ALT=\"25%2A1%2Aa%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25a%5E2 ALIGN=MIDDLE  ALT=\"25a%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-1%29%5E%282%2F5%29%2A25a%5E2 ALIGN=MIDDLE  ALT=\"%28-1%29%5E%282%2F5%29%2A25a%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "I cannot decide for sure if (-1)^(2/5) actually = 1<BR>\n" );
document.write( "but if you square the -1 you get 1<BR>\n" );
document.write( "if you take the fifth root of 1 you get 1\r<BR>\n" );
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document.write( "if you take the fifth root of -1 you get -1 <BR>\n" );
document.write( "if you square that -1 you get 1<BR>\n" );
document.write( "But some calculators come up with some weird numbers<BR>\n" );
document.write( "Different calculators give different results. </SPAN>\n" );
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