因式分解:(a²+2ab-4)(a²+2ab-2)+1
问题描述:
因式分解:(a²+2ab-4)(a²+2ab-2)+1
答
(a²+2ab-4)(a²+2ab-2)+1
=(a²+2ab)²-6(a²+2ab)+9
=(a²+2ab-3)²