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因式分解:(2a+1)(3a-5)-4(a-2)
人气:312 ℃ 时间:2020-03-29 22:43:39
解答
(2a+1)(3a-5)-4(a-2)
=6a²-10a+3a-5-4a+8
=6a²-11a+3
=(2a-3)(3a-1)
不懂还可问,o(∩_∩)o
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