(a+1)²(a-1)²(a²+1)²怎么算?

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(a+1)²(a-1)²(a²+1)²怎么算?
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(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
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