2 3 x 2 4 11 July 8, 2019 16 32 64 128 5 3 x )- 2 4 3x )= 11 2 x 1 11 2 3 x 2 1 2 1 4 7 2 3 x 4 n 2 11 3 4x 1 2 x 2 )=- 11 4