I had a test a few days ago, and I had a question there. can there be a real matrix where the minimal polynomial is $(x^2 - 3x + 2)$ and the characteristic polynomial is $(x^2 - 3x + 2)(x^2 - x + 2)$? I tried solving it for hours, and searched a lot for an answer. also on that note, is it possible for a minimal polynomial to not have all the eigenvalues? such as in this case?
thank you for the answer, however, how do I prove this without the theorem? can I prove this through the fact that it has 4 distinct eigenvalues, and therefore Diagonalizable?