document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170021>Question 170021</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0618044302/algebrahomeworkh>Algebra Structure and Method Book One</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Factor <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%5E2%2Bb%5E2-c%5E2-d%5E2-2ab%2B2cd ALIGN=MIDDLE  ALT=\"a%5E2%2Bb%5E2-c%5E2-d%5E2-2ab%2B2cd\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125480 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=125480\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a^2+b^2-c^2-d^2-2ab+2cd<BR>\n" );
document.write( "(a^2-2ab+b^2)-(c^2-2cd+d^2)<BR>\n" );
document.write( "(a-b)^2-(c-d)^2 ans. </SPAN>\n" );
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