The sequence an=3⋅2n−5na_n = 3 \cdot 2^n - 5^nan=3⋅2n−5n is a solution to which recurrence relation?
an=5an−1−6an−2a_n = 5a_{n-1} - 6a_{n-2}an=5an−1−6an−2
an=3an−1−5an−2a_n = 3a_{n-1} - 5a_{n-2}an=3an−1−5an−2
an=8an−1−15an−2a_n = 8a_{n-1} - 15a_{n-2}an=8an−1−15an−2
an=7an−1−10an−2a_n = 7a_{n-1} - 10a_{n-2}an=7an−1−10an−2