化简:3x^2y-(xy^2-2x^2y)-2(x^2y+3xy^2)

谢谢
2025-05-17 15:34:20
推荐回答(1个)
回答(1):

注意,楼上的错了


3x²y-(xy²-2x²y)-2(x²y+3xy²)
=3x²y-xy²+2x²y-2x²y-6xy²
=(3x²y+2x²y-2x²y)-(xy²+6xy²)
=3x²y-7xy²


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