document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151063>Question 151063</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please find:  B times C <BR>\n" );
document.write( "please show step by step\r<BR>\n" );
document.write( "\n" );
document.write( "B= <BR>\n" );
document.write( "5 2 1           <BR>\n" );
document.write( "1 -3 -1             <BR>\n" );
document.write( "1 2 4               \r<BR>\n" );
document.write( "\n" );
document.write( "C= <BR>\n" );
document.write( "-3<BR>\n" );
document.write( "1<BR>\n" );
document.write( "2 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #111016 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=111016\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When you multiply matrices, you multiply rows of one with columns of the other. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C3%2Ca%2Cb%2Cc%2Cd%2Ce%2Cf%2Ch%2Ci%2Cj%29%29%2A%28matrix%283%2C1%2Cx%2Cy%2Cz%29%29=%28matrix%283%2C1%2Cax%2Bby%2Bcz%2Cdx%2Bey%2Bfz%2Chx%2Biy%2Bjz%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Let's use your numbers.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C3%2C5%2C2%2C1%2C1%2C-3%2C-1%2C1%2C2%2C4%29%29%2A%28matrix%283%2C1%2C-3%2C1%2C2%29%29=%28matrix%283%2C1%2C5%28-3%29%2B2%281%29%2B1%282%29%2C%281%29%28-3%29%2B%28-3%29%281%29%2B%28-1%29%282%29%2C%281%29%28-3%29%2B2%281%29%2B4%282%29%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C3%2C5%2C2%2C1%2C1%2C-3%2C-1%2C1%2C2%2C4%29%29%2A%28matrix%283%2C1%2C-3%2C1%2C2%29%29=%28matrix%283%2C1%2C-11%2C-8%2C7%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );