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计算:2(x²y³)³-(x³y²)²·y的5次方-(x³y的4次方)²·y.
人气:395 ℃ 时间:2019-10-10 06:05:20
解答
2(x²y³)³-(x³y²)²·y的5次方-(x³y的4次方)²·y
=2x^6y^9-x^6y^4*y^5-x^6y^8·y
=2x^6y^9-x^6y^9-x^6y^9
=0
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