Determinant (2x2) - Matrix to Formula

Question

Which shows how to calculate the determinant of this matrix?

$$\left[ {\begin{array} {cc}  -7 &  -5 \ 6 &  -8 \end{array}  } ight]$$

Accepted Answer

$$(-7 \cdot -8) - (-5 \cdot 6)$$

Answer

$$(-5 \cdot 6) - (-7 \cdot -8)$$

Answer

$$(-7 \cdot 6) - (-5 \cdot -8)$$

Practice: Matrices