document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=417503>Question 417503</A>: <I><SPAN STYLE=\"word-break: break-all;\"> z^4+8z^3-9^z^2=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #292266 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=292266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> z^4+8z^3-9^z^2=0<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "z^2[z^2+8z-9] = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "z^2(z+9)(z-1) = 0<BR>\n" );
document.write( "----<BR>\n" );
document.write( "z = 0 or z = -9 or z = 1<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===========<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );