If B = [ 4 2; 6 5], Find |B| = _____?

If B = [ 4 2; 6 5], Find |B| = _____?

Explanation

Matrix B = [4 2; 6 5] (assuming it's a 2x2 matrix)

The determinant |B| = (4 × 5) - (2 × 6) = 20 - 12 = 8