Consider an−4an−1+3an−2=0a_n - 4a_{n-1} + 3a_{n-2} = 0an−4an−1+3an−2=0. Which are the characteristic roots?
1,31, 31,3
1,−31, -31,−3
−1,3-1, 3−1,3
2,22, 22,2