2 3 5 x 30 July 8, 2019 16 32 64 128 2x 30 2 3 x 5 30x 3 x 5 2 2 3 x 4 5 x 300 X nhân 3 5 x 2 30 3 5 x 2 15 7 30 1 4 x 3 )/ 2 5 =- 30 X 2 x 3 x 5 31x 30 X nhân 3 5 - x 2 = 30 3 2x 5 2x )= 4x 2 x 30 30 2 x 5 3 x 2 10 30 2 3 x 6 5
