因式分解a2-3ab+2b2

2024-12-10 01:09:26
推荐回答(2个)
回答1:

a2-3ab+2b2
=a2-2ab+b2-ab+b2
=(a-b)2-(ab-b2)
=(a-b)2-b(a-b)
=(a-b)(a-b-b)
=(a-b)(a-2b)

回答2:

答案是:
(a-2b)(a-b)