Х = - 1 6 July 8, 2019 16 32 64 128 Х 1 6 X 1 6 2 X 1 6 4 2x X 1 6 2 3 X 1 6 binomial expansion X 1 6 3 X 1 6 formula X 1 6 4 5 X 1 6 3 4 X /- 1 6 - 5 X 1 6 7 X 1 6 =- 3 8
