Question

(a-2b)(a+2b)(a2-2ab+4b2)(a2+2ab+4b2)=? 求求你们了。。。。

Answer 1

原式=[(a-2b)(a²+2ab+4b²)][(a+2b)(a²-2ab+4b²)]
=(a²-8b³)(a³+8b³)
=a^6-64b^6

Answer 2

(a-2b)(a+2b)(a2-2ab+4b2)(a2+2ab+4b2)
=(a2-4b2)(a-2b)2(a+22b)2
=(a2-4b2)(a2-4b2)2
=(a2-4b2)3
=a6-12a2b4+12a4b2-64b6

追问

你的错了，真丢人