Решите неравенство \(2^{2x-1}+2^{2x-2}+2^{2x-3}\ge448.\) \(x\in[0,5;+\infty)\) \(x\in(-\infty;4,5]\) \(x\in[\frac{2}{9};+\infty)\) \(x\in[4,5;+\infty)\) \(x\in(-\infty;\frac{2}{9}]\) \(x\in(-\infty;\frac{1}{2}]\)

Задание

Решите неравенство \(2^{2x-1}+2^{2x-2}+2^{2x-3}\ge448.\)

\(x\in[0,5;+\infty)\)
\(x\in(-\infty;4,5]\)
\(x\in[\frac{2}{9};+\infty)\)
\(x\in[4,5;+\infty)\)
\(x\in(-\infty;\frac{2}{9}]\)
\(x\in(-\infty;\frac{1}{2}]\)