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合并同类项:-6x²y-x+5x²y-2x+x³y+3x
人气:174 ℃ 时间:2020-05-12 21:31:26
解答
-6x²y-x+5x²y-2x+x³y+3x
=-6x²y+5x²y-x-2x+3x+x³y
=-x²y+x³y
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