document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=924406>Question 924406</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evaluate AB if possible. \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #560795 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=560795\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> AB looks like 3x3 matrix * 2x3 matrix.\r<BR>\n" );
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document.write( "the number of columns in the first matrix doesn't equal the number of rows in the second matrix so they can't be multiplied together.\r<BR>\n" );
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document.write( "the rule is;\r<BR>\n" );
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document.write( "AB is valid if number of columns in A equals number of rows in B.\r<BR>\n" );
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document.write( "the output will be number of rows in A by number of columns in B.\r<BR>\n" );
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