3.If `[[x+4,3],[4,3]]=[[0,3],[4,3]]` find the value of x

If |[x+2, 3],[x+5, 4]|=3 , find the value of x

If [[(x+3y),y],[7-x,4]]=[(4,-1),(0,1)], find the values of x and y.

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]|

If x=3+2i find the value of x^4-4x^3+4x^2+8x+39

If x^4+1/(x^4)=47 , find the value of x^3+1//x^3

If the mode of scores 3,\ 4,\ 3,\ 5,\ 4,\ 6,\ 6,\ x\ \ i s\ 4 , find the value of xdot

If x^4+1/(x^4)=119 , find the value of x^3-1/(x^3)

If A=[(1,x,3),(1,3,3),(2,4,4)] is the adjoint of a 3xx3 matrix B and det. (B)=4 , then the value of x is ______ .

If x + y=4 and x >=0, y>= 0 find the maximum value of x^3y .

If [(x+3, 4),(y,-4x+y)]=[(5 ,4),( 3 ,9)] , find x and y