因式分解a4-a2-2a-1
问题描述:
因式分解a4-a2-2a-1
答
=a^4-(a+1)^2
=(a^2-a-1)(a^2+a+1)
因式分解a4-a2-2a-1
=a^4-(a+1)^2
=(a^2-a-1)(a^2+a+1)