Quiz was pretty simple but long ;)

Here we go:

$$ A = \begin{bmatrix} 1 & 2 & 3 \\ 0 & 1 & 2 \\ 1 & 2 & 3 \\ \end{bmatrix} $$

$$ B = \begin{bmatrix} 3 & 1 & 5 \\ 1 & 0 & 2 \\ 5 & 6 & 1 \\ \end{bmatrix} $$

Find $(A-B)^2$ and $(A+B)^2$

Last words

good luck :D