document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=585171>Question 585171</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to factor the following:  (x^2+20xy+100y^2)z^2-16(x^2+20xy+100y^2)<BR>\n" );
document.write( "Thank you for any help you can give me. I know each equation in the parenthesis is a special product but don't know really how to proceed? Thanking you inadvance for you're help! robin </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #373179 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=373179\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (x^2+20xy+100y^2)z^2-16(x^2+20xy+100y^2)<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "(x+10y)^2*z^2-16(x+10y)^2<BR>\n" );
document.write( "---<BR>\n" );
document.write( "= (x+10y)^2[z^2-16)<BR>\n" );
document.write( "----<BR>\n" );
document.write( "= (x+10y)^2(z-4)(z+4)<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );