3) (k-2)(k 2) July 8, 2019 16 32 64 128 3 k 2 k 3 2 3 2 k )=- 3k 2 K 3 2 k 1 2 K 3 2k 2 k K 2 3k 2 K 2 3k 2 0 3k 2 2k 2
