Tìm m để bất phương trình \(% MathType!MTEF!2!1!+- % feaahqart1ev3aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr % 4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4rqqrFfpeea0xe9Lq-Jc9 % vqaqpepm0xbba9pwe9Q8fs0-yqaqpepae9pg0FirpepeKkFr0xfr-x % fr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaaGymaiabgU % caRiGacYgacaGGVbGaai4zamaaBaaaleaacaaI1aaabeaakmaabmqa % baGaamiEamaaCaaaleqabaGaaGOmaaaakiabgUcaRiaaigdaaiaawI % cacaGLPaaacqGHLjYSciGGSbGaai4BaiaacEgadaWgaaWcbaGaaGyn % aaqabaGcdaqadeqaaiaad2gacaWG4bWaaWbaaSqabeaacaaIYaaaaO % Gaey4kaSIaaGinaiaadIhacqGHRaWkcaWGTbaacaGLOaGaayzkaaaa % aa!4ED5! 1 + {\log _5}\left( {{x^2} + 1} \right) \ge {\log _5}\left( {m{x^2} + 4x + m} \right)\) thoã mãn với mọi \(x\in R\)

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