krwlz

Ok, I just dont know how to solve this...

We want to solve for X, when AX=B
A= (-1 2)
(2 -4)
(A is 2x2 matrix)

B=(1 2)
(3 5)
(B is 2x2 matrix)

So I need to find X, which as far as I can tell is a 2x2 matrix. Every problem we ever did in class, had X and B as a single column matirx, so I'm stumped as hell.

I've tried using x=(x1 x2)
(x3 x4)

But when you get the equations, and sub through them, you get 0=0. If you set up the equations in two seperate augmented matrices (Using the coefficients on the X's), then reduce (In an attempt to get to reduced row echolon form) it ends up being a matrix of 0's with real numbers in the augmented spot. Im so helplessly, and entirly confused...