Determine the values of `x` for which the matrix `A=[x+1-3 4-5x+2 2 4 1x-6]` is singular.

Explanation

To determine the values of \( x \) for which the matrix

\[ A = \begin{bmatrix} x + 1 & -3 \\ 4 & -5x + 2 \\ 2 & 4 \\ 1 & x - 6 \end{bmatrix} \]

is singular, we need to find when the determinant of the matrix \( A \) equals zero.

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