已知x-5y=0,化简(2x+y)(x-y)/x²+2xy+y²并求值.
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已知x-5y=0,化简(2x+y)(x-y)/x²+2xy+y²并求值.
![已知x-5y=0,化简(2x+y)(x-y)/x²+2xy+y²并求值.](/uploads/image/z/4784203-19-3.jpg?t=%E5%B7%B2%E7%9F%A5x-5y%3D0%2C%E5%8C%96%E7%AE%80%EF%BC%882x%2By%EF%BC%89%EF%BC%88x-y%EF%BC%89%2Fx%26%23178%3B%2B2xy%2By%26%23178%3B%E5%B9%B6%E6%B1%82%E5%80%BC.)
2x+y)(x-y)/x²+2xy+y²
已知x-5y=0,化简(2x+y)(x-y)/x²+2xy+y²并求值.
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