document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=190801>Question 190801</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jacob wants to compute 23x23, he says that 20x20=400 and 3x3=9 so the product must be 400+-=409. What would you discuss with Jacob to reinforce that he is partly correct and show him what he has missed </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #143281 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=143281\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I would tell Jacob that 23 X 23 can be written as (20+3)X(20+3) and that he can use the FOIL method to perform this multiplication thus:<BR>\n" );
document.write( "(23x23) = (20+3)(20+3) = (20X20)+(20X3)+(3X20)+(3x3) = 400+60+60+9 = 529 </SPAN>\n" );
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