已知x≠y,且x²-x=7,y²-y=7,求x+y的值 不会打²的用汉字代替
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/29 04:26:04
![已知x≠y,且x²-x=7,y²-y=7,求x+y的值 不会打²的用汉字代替](/uploads/image/z/2560467-3-7.jpg?t=%E5%B7%B2%E7%9F%A5x%E2%89%A0y%2C%E4%B8%94x%26sup2%3B-x%EF%BC%9D7%2Cy%26sup2%3B-y%EF%BC%9D7%2C%E6%B1%82x%2By%E7%9A%84%E5%80%BC+%E4%B8%8D%E4%BC%9A%E6%89%93%26sup2%3B%E7%9A%84%E7%94%A8%E6%B1%89%E5%AD%97%E4%BB%A3%E6%9B%BF)
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