Find the characteristic roots of r2−5r+4=0r^2 - 5r + 4 = 0r2−5r+4=0.
r=1,4r = 1, 4r=1,4
r=2,2r = 2, 2r=2,2
r=−1,−4r = -1, -4r=−1,−4
r=5,0r = 5, 0r=5,0