2 3 x 1 5 7 10 July 8, 2019 16 32 64 128 1 2 3 4 5 x 7 8 9 10 2 3x 5 x 7 10 3 2x 1 3 1 2 x )- 5 x 1 10 )=- 7 4 7 8 2 5 x 3 4 1 10 2 3 x 9 5 )- 3 10 5x 1 3 )= 7 15 2 5 x trừ 1 phần 2 3 5 x 7 10 X 2 3x 5 1 7 10 2/5 + 3/10
