For the recurrence relation an=5an−1−6an−2a_n = 5a_{n-1} - 6a_{n-2}an=5an−1−6an−2, what is the characteristic equation?
r2−5r+6=0r^2 - 5r + 6 = 0r2−5r+6=0
r2+5r−6=0r^2 + 5r - 6 = 0r2+5r−6=0
r2−5r−6=0r^2 - 5r - 6 = 0r2−5r−6=0
5r2−6r−1=05r^2 - 6r - 1 = 05r2−6r−1=0