问题
填空题
(2+1)(22+1)(24+1)的结果为______.
答案
(2+1)(22+1)(24+1),
=(2-1)(2+1)(22+1)(24+1),
=(22-1)(22+1)(24+1),
=(24-1)(24+1),
=28-1,
=255.
(2+1)(22+1)(24+1)的结果为______.
(2+1)(22+1)(24+1),
=(2-1)(2+1)(22+1)(24+1),
=(22-1)(22+1)(24+1),
=(24-1)(24+1),
=28-1,
=255.