Suppose the \(function\) \(f(x) - f(2x)\) has the \(derivative\) \(5\) at \(x = 1\) and \(derivative\) \(7\) at \(x = 2\) . The \(derivative\) 0f the \(function\) \(f(x) - f(4x)\) at \(x = 1\) ; has value equals to \(?\)

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