2(a-b)²-(a-b)和3（x-y)²-(x-y)³因式分解

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2(a-b)²-(a-b)和3（x-y)²-(x-y)³因式分解2(a-b)²-(a-b)和3（x-y)²-(x-y)³因式分解2(a-b)

2(a-b)²-(a-b)和3（x-y)²-(x-y)³因式分解
2(a-b)²-(a-b)和3（x-y)²-(x-y)³因式分解

2(a-b)²-(a-b)和3（x-y)²-(x-y)³因式分解
2(a-b)²-(a-b)＝(a-b)(2a-2b-1)
3（x-y)²-(x-y)³ = (x-y)²(3-x+y)

2(a-b)²-(a-b)=(a-b)(2a-2b-1)