(a²-b²)(a²+ab+b²)(a²-ab+b²)计算（a+1）（a²-a+1）=a³+1(a-2)(a²+2a+4)=a³-8

(a²-b²)(a²+ab+b²)(a²-ab+b²)计算（a+1）（a²-a+1）=a³+1(a-2)(a²+2a+4)=a³-8
(a²-b²)(a²+ab+b²)(a²-ab+b²)计算
（a+1）（a²-a+1）=a³+1
(a-2)(a²+2a+4)=a³-8

(a²-b²)(a²+ab+b²)(a²-ab+b²)计算（a+1）（a²-a+1）=a³+1(a-2)(a²+2a+4)=a³-8
(a²-b²)(a²+ab+b²)(a²-ab+b²)
=(a-b)(a+b)(a²+ab+b²)(a²-ab+b²)
=(a³-b³)(a³+b³)
=a^6-b^6
（a+1）（a²-a+1）=a³+1
(a-2)(a²+2a+4)=a³-8
这两个要怎么解答?‍‍