a^3-6a^2+12a-8因式分解怎么做?求详解
问题描述:
a^3-6a^2+12a-8因式分解怎么做?求详解
答
a³-6a²+12a-8
=(a³-6a²+8a)+(4a-8)
=a(a²-6a+8)+4(a-2)
=a(a-2)(a-4)+4(a-2)
=(a-2)(a²-4a+4)
=(a-2)³