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6X^2-6X^3-X+1=(1-X)(6X^2+1)怎么得到的?
人气:282 ℃ 时间:2020-05-27 16:59:08
解答

6x²-6x³-x+1
=6x²(1-x)+(1-x)
=(1-x)(6x²+1)
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