document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182015>Question 1182015</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Keller performed the work below to express the polynomial in factored form:	<BR>\n" );
document.write( "r(x) = x^4  -  8x^2  -  9 	<BR>\n" );
document.write( "r(x) = (x^2 + 1)(x^2  -  9) <BR>\n" );
document.write( "(x) = (x + 1)(x  -  1)(x + 3)(x  -  3)<BR>\n" );
document.write( "Explain the error he made and complete the factorization correctly.	 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #811975 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=811975\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "r(x) = x^4  -  8x^2  -  9 }}}\r<BR>\n" );
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document.write( "(x^2+1) not (x+1)(x-1)\r<BR>\n" );
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document.write( ") </SPAN>\n" );
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