3 1 3 x 9 2 July 8, 2019 16 32 64 128 1 3 x 9 20 3 1 3 2 2 9 х 9 20 3 (- 1 x )- 2x 9 1 3 x 9 )= 2 3 x 7 1 3 9 x 2 5 6 3 1 9 x 2 3 4 3 1 9 x 27 1 3 х =- 2 9 1 3 x 6 )= 2 3 x 9 2 3 x 9 )= 1 3 x 27 4 3 x 27 = 1 3 x 9 1 3 x 15 )+ 2 3 x 9 1 3 3x 9 )=- 2 x 3 3 x 3 x 9 2 4x 1 1 3 x 9 29