document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=166212>Question 166212</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can someone help with this problem please:\r<BR>\n" );
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document.write( "Solve the matrix equation for X.\r<BR>\n" );
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document.write( "A = <BR>\n" );
document.write( " 2 0 0<BR>\n" );
document.write( "-1 2 0<BR>\n" );
document.write( "-2 4 1\r<BR>\n" );
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document.write( "B = <BR>\n" );
document.write( "4 <BR>\n" );
document.write( "10<BR>\n" );
document.write( "11\r<BR>\n" );
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document.write( "AX = B\r<BR>\n" );
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document.write( "CHOOSE FROM:\r<BR>\n" );
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document.write( "a. <BR>\n" );
document.write( "0<BR>\n" );
document.write( "8<BR>\n" );
document.write( "-9\r<BR>\n" );
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document.write( "b. <BR>\n" );
document.write( "2 <BR>\n" );
document.write( "6<BR>\n" );
document.write( "-9\r<BR>\n" );
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document.write( "c.<BR>\n" );
document.write( "3 <BR>\n" );
document.write( "7<BR>\n" );
document.write( "-8\r<BR>\n" );
document.write( "<BR>\n" );
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document.write( "d. <BR>\n" );
document.write( "3 <BR>\n" );
document.write( "6<BR>\n" );
document.write( "-10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #122506 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=122506\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=AX=B ALIGN=MIDDLE  ALT=\"AX=B\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X=A%5E%28-1%29B ALIGN=MIDDLE  ALT=\"X=A%5E%28-1%29B\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find the inverse of A.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=%28matrix%283%2C3%2C%0D%0A2+%2C0+%2C0%0D%0A%2C-1%2C+2%2C+0%2C%0D%0A-2%2C+4%2C+1++%29%29 ALIGN=MIDDLE  ALT=\"A=%28matrix%283%2C3%2C%0D%0A2+%2C0+%2C0%0D%0A%2C-1%2C+2%2C+0%2C%0D%0A-2%2C+4%2C+1++%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5E%28-1%29=%281%2F4%29%2A%28matrix%283%2C3%2C%0D%0A2+%2C0+%2C0%0D%0A%2C1%2C+2%2C+0%2C%0D%0A0%2C+-8%2C4++%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Multiply rows of the inverse matrix by the column matrix to get the product. \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%5B1%5D=+%281%2F4%29%2A%282%284%29%2B0%2810%29%2B0%2811%29%29=2 ALIGN=MIDDLE  ALT=\"X%5B1%5D=+%281%2F4%29%2A%282%284%29%2B0%2810%29%2B0%2811%29%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%5B2%5D=+%281%2F4%29%2A%281%284%29%2B2%2810%29%2B0%2811%29%29=6 ALIGN=MIDDLE  ALT=\"X%5B2%5D=+%281%2F4%29%2A%281%284%29%2B2%2810%29%2B0%2811%29%29=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X%5B3%5D=+%281%2F4%29%2A%280%284%29%2B%28-8%29%2810%29%2B4%2811%29%29=-9 ALIGN=MIDDLE  ALT=\"X%5B3%5D=+%281%2F4%29%2A%280%284%29%2B%28-8%29%2810%29%2B4%2811%29%29=-9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28matrix%283%2C3%2C%0D%0A2+%2C0+%2C0%0D%0A%2C-1%2C+2%2C+0%2C%0D%0A-2%2C+4%2C+1++%29%29%2A%28matrix%283%2C1%2C+%0D%0A2%2C6%2C-9+%29%29=%28matrix%283%2C1%2C+%0D%0A4%2C10%2C11+%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "b.)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=X=%28matrix%283%2C1%2C+%0D%0A2%2C6%2C-9+%29%29 ALIGN=MIDDLE  ALT=\"X=%28matrix%283%2C1%2C+%0D%0A2%2C6%2C-9+%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );