6ab-9a²b-b³咋分解因式.
问题描述:
6ab-9a²b-b³咋分解因式.
答
6ab-9a²b-b³
=-b(9a²-6a+b²)
=-b(3a-b)²
6ab-9a²b-b³咋分解因式.
6ab-9a²b-b³
=-b(9a²-6a+b²)
=-b(3a-b)²