document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=92542>Question 92542</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780073268620/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Find all real or imaginary solutions to this equation:\r<BR>\n" );
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document.write( "x^-2-9x^-1+18=0\r<BR>\n" );
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document.write( "I am no sure really where to start whether I should square the entire problem or what I am stumped.  Please help!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #67372 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=67372\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x^-2-9x^-1+18=0<BR>\n" );
document.write( "It's a quadratic; the variable is x^-1.<BR>\n" );
document.write( "Factor to get:<BR>\n" );
document.write( "(x^-1-6)(x^-1-3) = 0<BR>\n" );
document.write( "Since the product is zero one of the factors must be zero.<BR>\n" );
document.write( "x^-1 = 6 or x^-1 = 3<BR>\n" );
document.write( "Invert both sides to get:<BR>\n" );
document.write( "x = 1/6 or x=1/3<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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