document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25391>Question 25391</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLease can someone explain this to me?\r<BR>\n" );
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document.write( "Evaluate: (a-2b)(a+2b) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13608 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=13608\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use the FOIL method:<BR>\n" );
document.write( "F: a*a=a^2<BR>\n" );
document.write( "O: a(2b)=+2ab<BR>\n" );
document.write( "I:-2b(a)=-2ab<BR>\n" );
document.write( "L:-2b(2b)=-4b^2<BR>\n" );
document.write( "Add these to get:<BR>\n" );
document.write( "a^2-4b^2\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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