If `[(x,4,1)][(2,1,2),(1,0,2),(0,2,-4)][(x),(4),(-1)]=0` , find `xdot`

Explanation

To solve the equation given by the product of matrices, we will follow these steps:

### Step 1: Define the Matrices
Let:
- Matrix A = \(\begin{pmatrix} x & 4 & 1 \end{pmatrix}\) (1x3 matrix)
- Matrix B = \(\begin{pmatrix} 2 & 1 & 2 \\ 1 & 0 & 2 \\ 0 & 2 & -4 \end{pmatrix}\) (3x3 matrix)
- Matrix C = \(\begin{pmatrix} x \\ 4 \\ -1 \end{pmatrix}\) (3x1 matrix)

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