![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
So sánh C và D
C = [tex]3^{n+1} + 4*2^{n-1} - 81*3^{n-3} - 8*2^{n-2} +1[/tex]
D = [tex](2^{n}+1)^{2}+ (2^{n}-1)^{2}- 2 * (4^{n}+1)[/tex]
C = [tex]3^{n+1} + 4*2^{n-1} - 81*3^{n-3} - 8*2^{n-2} +1[/tex]
D = [tex](2^{n}+1)^{2}+ (2^{n}-1)^{2}- 2 * (4^{n}+1)[/tex]