Solving Systems with Inverses · Example 2

For the determinant $\left|\begin{array}{ccccccc}4& & & -2& & & 3\\ 1& & & 0& & & -3\\ -2& & & -4& & & 2\end{array}\right|,$ find and then evaluate the minor of ⓐ $a_1$ ⓑ $b_3$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Algebra and Trigonometry 2e · §11.7 Solving Systems with Inverses · Example 2