If λ\lambdaλ is an eigenvalue of matrix AAA, which is an eigenvalue of A2−3A+IA^2 - 3A + IA2−3A+I?
λ2−3λ+1\lambda^2 - 3\lambda + 1λ2−3λ+1
λ2−3\lambda^2 - 3λ2−3
λ−3\lambda - 3λ−3
2λ−32\lambda - 32λ−3