(5+1)(5²+1)(5的四次方+1)(5的八次方+1 )=(过程)
(5+1)(5²+1)(5的四次方+1)(5的八次方+1 )=(过程)
日期:2012-04-17 21:05:17 人气:2
(5+1)(5平方+1)(5的四次方+1)(5的八次方+1)
=(5-1)(5+1)(5^2+1)(5^4+1)(5^8+1)/4
=(5^2-1)(5^2+1)(5^4+1)(5^8+1)/4
=(5^4-1)(5^4+1)(5^8+1)/4
=(5^8-1)(5^8+1)/4
=(5^16-1)/4