因式分解 6a²b-2ab和（m+1)²-9
人气：216 ℃ 时间：2020-05-13 15:25:17
解答
6a²b-2ab
=2ab(3a-1)
（m+1)²-9
=(m+1+3)(m+1-3)
=(m+4)(m-2)
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