(3n - 4)(6n 2 - 2n 6) July 8, 2019 16 32 64 128 6 (n 3 − n) 6) 4(5 - n) - 3(2n + 7) = 0 (63 ^ (n + 4))/(3 ^ (2n + 6) * 7 ^ (n + 5))