document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=109394>Question 109394</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A= [2 -1]           B= [4  -2]<BR>\n" );
document.write( "   [3  0]              [5   1]\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Find 3A-B. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #79751 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=79751\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First calculate 3A\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3A=3%28matrix%282%2C2%2C2%2C-1%2C3%2C0%29%29=%28matrix%282%2C2%2C2%2A3%2C-1%2A3%2C3%2A3%2C0%2A3%29%29=%28matrix%282%2C2%2C6%2C-3%2C9%2C0%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Now subtract B from 3A\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3A-B=%28matrix%282%2C2%2C6%2C-3%2C9%2C0%29%29-%28matrix%282%2C2%2C4%2C-2%2C5%2C1%29%29=%28matrix%282%2C2%2C6-4%2C-3--2%2C9-5%2C0-1%29%29=%28matrix%282%2C2%2C2%2C-1%2C4%2C-1%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3A-B=%28matrix%282%2C2%2C2%2C-1%2C4%2C-1%29%29 ALIGN=MIDDLE  ALT=\"3A-B=%28matrix%282%2C2%2C2%2C-1%2C4%2C-1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );