1/2xy(2/3xy²-2xy)
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1/2xy(2/3xy²-2xy)
1/2xy(2/3xy²-2xy)
1/2xy(2/3xy²-2xy)
1/2xy(2/3xy²-2xy)
=1/3x²y³-x²y²
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1/3x²y³-x²y²
1/2xy(2/3xy²-2xy)
1/2xy(2/3xy²-2xy)
1/2xy(2/3xy²-2xy)
1/2xy(2/3xy²-2xy)
=1/3x²y³-x²y²
如果本题有什么不明白可以追问,如果满意请点击“选为满意答案”
1/3x²y³-x²y²