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因式分解:a³-5a²-24a 4x²-3x-10 x²-(2m-1)x+m²-m
人气:453 ℃ 时间:2020-03-18 07:24:36
解答
a³-5a²-24a
=a(a²-5a-24)
=a(a-8)(a+3)

4x²-3x-10
=(x-2)(4x+5)

x²-(2m-1)x+m²-m
=(x-m)(x-m+1)
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