若|x+y-4|+（xy-3）2=0,则x2+y2=_1 ._刷题宝

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若|x+y-4|+（xy-3）²=0,则x²+y²=____ .

上一题下一题 0.0难度选择题更新时间:2018-10-27 10:39:47

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10

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依次填写词语恰当的一项是（）

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student

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