1) λm is the eigenvalue of matrix Am (m belongs to N).2) kλ is an eigenvalue of matrix kA.3) λ + k is an eigenvalue of the matrix A + kI.4) λ - k is an eigenvalue of matrix A - kI.Calculation:Given:3, 5 are the EIGENVALUES then,Using Property 1;A3 = λ3 = 33 = 27.A3 = λ3 = 53 = 125.