If `[x\ \ 4\ \ 1][2 1 2 1 0 2 0 2-4][x4-1]=0` , find `xdot`

If [x\ \ 4\ \ 1][[2, 1 ,2],[ 1, 0 ,2],[ 0 ,2,-4]][[x],[4],[-1]]=0 , find xdot

[[x,4,1]][[2,1,21,0,20,2,-4]][[14-1]]=0, find x

If [1\ \ 1\ \ x][[1, 0, 2],[ 0 ,2, 1],[ 2, 1, 0]][[1],[ 1],[ 1]]=0 , find xdot

If [[x,4,1]][[2,1,2],[1,0,2],[0,2,-4]][[x],[4],[-1]]=0 Find x

If [x\ \ 1][(1 ,0),(-2, 0)]=O , find xdot

If [1\ -1\ \ x][[0, 1,-1 ],[2 ,1 ,3],[ 1, 1, 1]][[0 ],[1],[ 1]]=0 , find xdot

If | [ x , 2 , 4 ] , [ 3 , -1 , 2 ] , [ 4, 5 , 1 ] | = 0 , find the value of x

If [[x, 4, 1]] [[2,-1,2] , [1,0,2] , [0,2,-4]] [[x], [4], [1]]=0 then find x

If [[x,4,-1]][(2,1,0),(1,0,2),(0,2,4)][(x),(4),(-1)]=0 then x=

If |[1, x, x^2], [x, x^2, 1], [x^2, 1, x]|=3, then find the value of |[x^3-1, 0, x-x^4], [0, x-x^4, x^3-1], [x-x^4, x^3-1, 0]|