3ab²-9a²b²+6a³b²=
问题描述:
3ab²-9a²b²+6a³b²=
答
3ab^2(1-3a+2a^2)
答
3ab²(1-3a+2a²)=3ab²(2a-1)(a-1)
3ab²-9a²b²+6a³b²=
3ab^2(1-3a+2a^2)
3ab²(1-3a+2a²)=3ab²(2a-1)(a-1)