来自孙玉坤的问题
(2+1）×（2^2+1）×（2^4+1）×（2^8+1）×（2^16+1）×（2^32+1）=2^2-1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)=(2^4-1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)=(2^8-1)(2^8+1)(2^16+1)(2^32+1)=(2^16-1)(2^16+1)(2^32+1)=(2^32-1)(2^32+1)=2^64-14x＾2+kx+9是
(2+1）×（2^2+1）×（2^4+1）×（2^8+1）×（2^16+1）×（2^32+1）
=2^2-1)(2^2+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)
=(2^4-1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)
=(2^8-1)(2^8+1)(2^16+1)(2^32+1)
=(2^16-1)(2^16+1)(2^32+1)
=(2^32-1)(2^32+1)
=2^64-1
4x＾2+kx+9是完全平方式,k=12或负12
1回答
2020-05-18 23:00