6a-9ab+3a 因式分解


6a-9ab+3a =9a-9ab=9a(1-b)
题目有误吧!
6a-9ab+3a
=3a(2-3b+1)
=3a(3-3b)
=9a(1-b)
原式=9a(1-b)
9a(1-b)