3 4 x 5 6 1 6 July 8, 2019 16 32 64 128 2 3 4 x 1 5 6 x 1 1 6 7 6 х 3 4 1 2 x 5 6 4 5 x 5 6 )- 2 3 x 1 4 )= 7 6 Tính 3 4 x 5 6 1 6 4 6*3 5+1 1 6 5 - 3 4 3 4×5 6