document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=167810>Question 167810</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Factor completely 16x4 – 40x2 + 9  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #123708 by </B><A HREF=/tutors/aboutme.mpl?userid=padmameesala><B>padmameesala(42)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=padmameesala><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=123708\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 16x^4 - 40x^2 + 9<BR>\n" );
document.write( "= 16x^4 - 36x^2 - 4x^2 + 9<BR>\n" );
document.write( "= 4x^2(4x^2 - 9) - 1(4x^2 - 9)<BR>\n" );
document.write( "= (4x^2 - 9)(4x^2 - 1)<BR>\n" );
document.write( "= (2x + 3)(2x - 3)(2x + 1)(2x - 1) </SPAN>\n" );
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