document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1023732>Question 1023732</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to factorize X^4 + 1/X^4 – 3 by completing the square. I am getting (X^2+ 1/X^2)^2 - 5. However book's answer is (x^2+1/x^2)^2 +1)(x^2+1/x^2)^2 -1)\r<BR>\n" );
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document.write( "Thank you\r<BR>\n" );
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document.write( "waqar </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #639239 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=639239\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> X^4 + 1/X^4 – 3 by completing the square.<BR>\n" );
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document.write( "check the book's answer:<BR>\n" );
document.write( "(x^2+1/x^2)^2 +1)(x^2+1/x^2)^2 -1) = (x^2 + 1/x^2)^2 - 1<BR>\n" );
document.write( "= x^4 + 2 + 1/x^4 - 1<BR>\n" );
document.write( "= x^4 + 1/x^4 + 1  ---> book is wrong.<BR>\n" );
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