(a-b)(a+b)(a2+b2)(a4+b4)(a8+b8)
问题描述:
(a-b)(a+b)(a2+b2)(a4+b4)(a8+b8)
答
(a-b)(a+b)(a2+b2)(a4+b4)(a8+b8),
=(a2-b2)(a2+b2)(a4+b4)(a8+b8),
=(a4-b4)(a4+b4)(a8+b8),
=(a8-b8)(a8+b8),
=a16-b16.