I will analyze the image to extract the mathematical content and provide solutions.

Let's see what's in the image.The image appears to contain several matrix operations. Here's a breakdown of what I can identify:

1. First Matrix Operation: A multiplication operation between two matrices:

   \cdot \begin{bmatrix} 2 & -1 & 0 \\ 1 & 0 & 3 \\ 4 & 1 & 2 \end{bmatrix}$$

2. Second Matrix Operation: An addition or subtraction between matrices: $\text{It looks like: } \begin{bmatrix} 2 & 3 & 0 \\ 1 & -1 & 4 \\ 0 & 5 & -2 \end{bmatrix} + (-1) \cdot \begin{bmatrix} 1 & 1 & 2 \\ 3 & 0 & -1 \\ -2 & 4 & 1 \end{bmatrix}$

3. Third Matrix Operation: A scalar multiplication of a matrix: $2 \cdot \begin{bmatrix} 1 & -2 & 0 \\ 3 & 1 & -4 \\ 2 & -1 & 1 \end{bmatrix}$

Would you like me to solve these matrix operations step-by-step?