来自宫国利的问题
a³-8-6a²+12a因式分解
a³-8-6a²+12a因式分解
1回答
2020-09-03 14:54
a³-8-6a²+12a因式分解
a³-8-6a²+12a因式分解
a³-8-6a²+12a
=a³-2³-6a(a-2)
=(a-2)(a²+2a+4)-6a(a-2)
=(a-2)(a²-4a+4)
=(a-2)(a-2)²
=(a-2)³