document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=625847>Question 625847</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the sum of the roots of equation x^4 -1=0\r<BR>\n" );
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document.write( "a) -2i<BR>\n" );
document.write( "b) -1<BR>\n" );
document.write( "c) 0<BR>\n" );
document.write( "d) 4i<BR>\n" );
document.write( "e) 6i </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #393816 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=393816\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1-1+i-i=0<BR>\n" );
document.write( "c) 0 </SPAN>\n" );
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