document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=434233>Question 434233</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following equation over the complex numbers.<BR>\n" );
document.write( "x2 + 16 = 0  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #300894 by </B><A HREF=/tutors/aboutme.mpl?userid=Gogonati><B>Gogonati(855)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Gogonati><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=Gogonati><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=300894\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> To solve <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2%2B16=0 ALIGN=MIDDLE  ALT=\"x%5E2%2B16=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, subtract 16 from both sides,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2=-16 ALIGN=MIDDLE  ALT=\"x%5E2=-16\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and x= +/- sqrt(-16)= +/- sqrt(16)*Sqrt(-1), we know that \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28-1%29=i ALIGN=MIDDLE  ALT=\"sqrt%28-1%29=i\"   DISABLED_style= \"max-width:90%; height:auto;\" >,thus x=+/-4i. </SPAN>\n" );
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