2 3 x 1 5 7 10 July 8, 2019 16 32 64 128 3 1 2 x )- 5 x 1 10 )=- 7 4 2 3 nhân x 1 5 7 10 X 2 3x 5 1 7 10 2 3x 5 x 7 10 3 2x 1 2 3 x 9 5 )- 3 10 5x 1 3 )= 7 15 7 2x 3 )+ 2 x 1 )- 5 x 9 )= 3x 10 2x 1 10 3 2 x )/ 5 7 15 5 x 7 = 35
