已知x+y=2,xy=2/3求：(1)x^2y+xy^2 (2)(x^2-1)(y^2-1)已知x+y=2,xy=2/3求：(1)x^2y+xy^2(2)(x^2-1)(y^2-1)

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已知x+y=2,xy=2/3求：(1)x^2y+xy^2 (2)(x^2-1)(y^2-1)已知x+y=2,xy=2/3求：(1)x^2y+xy^2(2)(x^2-1)(y^2-1)
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已知x+y=2,xy=2/3求：(1)x^2y+xy^2 (2)(x^2-1)(y^2-1)已知x+y=2,xy=2/3求：(1)x^2y+xy^2(2)(x^2-1)(y^2-1)
已知x+y=2,xy=2/3求：(1)x^2y+xy^2 (2)(x^2-1)(y^2-1)
已知x+y=2,xy=2/3求：
(1)x^2y+xy^2
(2)(x^2-1)(y^2-1)

已知x+y=2,xy=2/3求：(1)x^2y+xy^2 (2)(x^2-1)(y^2-1)已知x+y=2,xy=2/3求：(1)x^2y+xy^2(2)(x^2-1)(y^2-1)