Final answer:
The determinant of the given matrix is -3336.
Step-by-step explanation:
The determinant of a 2x2 matrix [a b; c d] can be calculated as ad - bc.
In the given matrix, the elements are -58, -7, 4, and 58. So, the determinant is (-58 * 58) - (-7 * 4), which simplifies to -3364 - (-28). This gives us a determinant of -3336.