2x 1 6 3 x 9 July 8, 2019 16 32 64 128 3x 1 6 x 3 5 2x 9 3 2x 1 1 6 x 2 9 1 3 2x 5 )+ 1 6 x 9 9 2x 1 3 x 1 6 0 12x 14 x 1 )=- 6 2x 3 )+ 9x 12x 14 x 1 )=- 6 2x 3 )+ 9 1 x 3 2 2x 6 và 3 3x 9
