数学 实数于整式1.若x,y满足x²+2y²-2xy-2y+1=0,求xy的值.2.已知a²+2b²+2c²-2ab-2bc-6c+9=0求a×(b的c次方)(注:²表示平方)
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![数学 实数于整式1.若x,y满足x²+2y²-2xy-2y+1=0,求xy的值.2.已知a²+2b²+2c²-2ab-2bc-6c+9=0求a×(b的c次方)(注:²表示平方)](/uploads/image/z/13883578-34-8.jpg?t=%E6%95%B0%E5%AD%A6+%E5%AE%9E%E6%95%B0%E4%BA%8E%E6%95%B4%E5%BC%8F1.%E8%8B%A5x%2Cy%E6%BB%A1%E8%B6%B3x%26sup2%3B%2B2y%26sup2%3B-2xy-2y%2B1%3D0%2C%E6%B1%82xy%E7%9A%84%E5%80%BC.2.%E5%B7%B2%E7%9F%A5a%26sup2%3B%2B2b%26sup2%3B%2B2c%26sup2%3B-2ab-2bc-6c%2B9%3D0%E6%B1%82a%C3%97%28b%E7%9A%84c%E6%AC%A1%E6%96%B9%29%28%E6%B3%A8%3A%26sup2%3B%E8%A1%A8%E7%A4%BA%E5%B9%B3%E6%96%B9%29)
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