2 câu trả lời
Answer`:`
`↓`
`3.8-3n vdots n`
`=>24-3n vdots n`
Vì `3n vdots n` với `∀n in Z`
`=>24 vdots n`
`=>n in Ư(24)`
`=>n in {±1;±2;±3;±4;±6;±8;±12;±24}`
Vậy `n in {±1;±2;±3;±4;±6;±8;±12;±24}`
`↑`
`#Boy`
Answer`:`
`↓`
`3.8-3n vdots n`
`=>24-3n vdots n`
Vì `3n vdots n` với `∀n in Z`
`=>24 vdots n`
`=>n in Ư(24)`
`=>n in {±1;±2;±3;±4;±6;±8;±12;±24}`
Vậy `n in {±1;±2;±3;±4;±6;±8;±12;±24}`
`↑`
`#Boy`