Algebra exam coming up on Wednesday, and I'm stumped on how to get the egenvalues of a 3x3 matrix. I think I did them about 2 years ago, and they're gone completely out of my head.
I know the eigenvalues comes out as .
I know you subtract from the diagonal line at first, but then where do you go with it? I would really appreciate it if you could show step-by-step work. Thanks