document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=934640>Question 934640</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I find all zeros in f(x) = x^3 + 1?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567628 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=567628\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How do I find all zeros in f(x) = x^3 + 1?<BR>\n" );
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document.write( "x^3+1 is divisible by x+1<BR>\n" );
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document.write( "x^3+1 = (x+1)(x^2 - x + 1)<BR>\n" );
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document.write( "Solve:: (x+1)(x^2-x+1) = 0<BR>\n" );
document.write( "If x+1 = 0, x = -1<BR>\n" );
document.write( "OR<BR>\n" );
document.write( "If x^2-x+1 = 0<BR>\n" );
document.write( "x = [1 +- sqrt(1-4*1*1)]/2<BR>\n" );
document.write( "x = [1+sqrt(-3)]/2 = (1+isqrt(3))/2<BR>\n" );
document.write( "OR<BR>\n" );
document.write( "x = (1-isqrt(3)]/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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