N
ngduchai
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
a)Thuc hien phep tinh
A=(2^9+2^7+1)(2^23-2^21+2^19-2^17+2^14-2^10+2^9-2^7+1)
b) So 2^32+1 co la so nguyen to ko?vi sao?
A=(2^9+2^7+1)(2^23-2^21+2^19-2^17+2^14-2^10+2^9-2^7+1)
b) So 2^32+1 co la so nguyen to ko?vi sao?