If A=-51371-51-11 and B=11232121</mt , find the product AB and BA and hence solve thesystem of equations x+y+2z=1, 3x+2y+z=7, 2x+y+3z=2.

If $A = [\begin{matrix} - 5 & 1 & 3 \\ 7 & 1 & - 5 \\ 1 & - 1 & 1 \end{matrix}]$ and $B = [\begin{matrix} 1 & 1 & 2 \\ 3 & 2 & 1 \\ 2 & 1 </mt , find the product AB and BA and hence solve thesystem of equations x+y+2z=1, 3x+2y+z=7, 2x+y+3z=2. \end{matrix}]$

Mixed-up sentence exercise

Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.