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By adapting a new approach of Arora-Dodson-Murphy \\cite{ADM}, we show the energy scattering for the equation with radially symmetric initial data. In the focusing case, our result extends the one of Farah-Guzm\\'an \\cite{FG-high} to the whole range of $b$ where the local well-posedness is available. 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By adapting a new approach of Arora-Dodson-Murphy \\cite{ADM}, we show the energy scattering for the equation with radially symmetric initial data. In the focusing case, our result extends the one of Farah-Guzm\\'an \\cite{FG-high} to the whole range of $b$ where the local well-posedness is available. 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