(a+1)²(a-1)²(a²+1)²怎么算?

(a+1)²(a-1)²(a²+1)²怎么算?
(a+1)²(a-1)²(a²+1)²怎么算?

(a+1)²(a-1)²(a²+1)²怎么算?
(a+1)²(a-1)²(a²+1)²
=（(a+1)(a-1)(a²+1)）²
=（a^4-1）²
=a^8-2a^4+1

(a+1)²(a-1)²(a²+1)²
=[(a+1)(a-1)]²(a²+1)²
=(a²-1)²(a²+1)²
=(a^4-1)²

（a+1）²（a-1）²（a²+1）²
=【（a+1）（a-1）】² （a²+1）²
=（a²-1）²（a²+1）²
=【（a²-1）（a²+1）】²
=（a的四次方-1）²
=a的四次方-2a的四次方+1
望采纳 谢谢！