If A=![\left[\begin{array}{ccc}0&1&2\\2&3&4\\4&5&-6\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%26amp%3B1%26amp%3B2%5C%5C2%26amp%3B3%26amp%3B4%5C%5C4%26amp%3B5%26amp%3B-6%5Cend%7Barray%7D%5Cright%5D "\left[\begin{array}{ccc}0&1&2\\2&3&4\\4&5&-6\end{array}\right]")
; B=![\left[\begin{array}{ccc}-1&2&3\\0&1&0\\0&0&-1\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-1%26amp%3B2%26amp%3B3%5C%5C0%26amp%3B1%26amp%3B0%5C%5C0%26amp%3B0%26amp%3B-1%5Cend%7Barray%7D%5Cright%5D "\left[\begin{array}{ccc}-1&2&3\\0&1&0\\0&0&-1\end{array}\right]")
. Then find B - A and 4A - 5B.
Show process also.
Make B - A = B + (-1) A
Make 4A - 5B = 4A + (-5)B
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