![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Tìm số nguyên n sao cho:
[TEX]a) n^2 + 2n - 4[/TEX] chia hết cho 11
[TEX]b) 2n^3 + n^2 + 7n + 1[/TEX] chia hết cho 2n - 1
[TEX]c) n^3 - 2[/TEX] chia hết cho n-2
[TEX]d) n^3 - 3n^2 - 3n - 1[/TEX] chia hết cho [TEX]n^2 + n + 1[/TEX]
[TEX]e) n^4 - 2n^3 + 2n^2 - 2n + 1[/TEX] chia hết cho [TEX]n^4 - 1[/TEX]
[TEX]g) n^3 - n^2 + 2n + 7[/TEX] chia hết cho[TEX]n^2 + 1[/TEX]
[TEX]a) n^2 + 2n - 4[/TEX] chia hết cho 11
[TEX]b) 2n^3 + n^2 + 7n + 1[/TEX] chia hết cho 2n - 1
[TEX]c) n^3 - 2[/TEX] chia hết cho n-2
[TEX]d) n^3 - 3n^2 - 3n - 1[/TEX] chia hết cho [TEX]n^2 + n + 1[/TEX]
[TEX]e) n^4 - 2n^3 + 2n^2 - 2n + 1[/TEX] chia hết cho [TEX]n^4 - 1[/TEX]
[TEX]g) n^3 - n^2 + 2n + 7[/TEX] chia hết cho[TEX]n^2 + 1[/TEX]