Dadas as matrizes: $$A=\left[\begin{array}{cccc}& 1& 2& -1\\ & 1& 0& 1\\ & 1& -1& 1\end{array}\right],x=\left[\begin{array}{c}21365\end{array}\right]eB=x^{\gamma }\cdot x$$ Qual é o valor do determinante de $2\cdot A^{-1}\cdot B^2?$