Algebra 2HardLinear Systems & Matrices ShareLinear Systems & Matrices · Hard problemEvaluate det[31−2−1242−31]\det\begin{bmatrix} 3 & 1 & -2 \\ -1 & 2 & 4 \\ 2 & -3 & 1 \end{bmatrix}det3−1212−3−241.Check Show answer Walk through it step by step Practice more like this Review this concept