Tìm x , biết rằng: 1) 15/ 8 − 1/ 8 : ( x ^4 − 0 , 5 ) = 5/ 4

1) \(\frac{{15}}{8} - \frac{1}{8}:\left( {\frac{x}{4} - 0,5} \right) = \frac{5}{4}\)

\(\frac{1}{8}:\left( {\frac{x}{4} - 0,5} \right) = \frac{{15}}{8} - \frac{5}{4}\)

\(\frac{1}{8}:\left( {\frac{x}{4} - 0,5} \right) = \frac{5}{8}\)

\(\frac{x}{4} - 0,5 = \frac{1}{8}:\frac{5}{8}\)

\(\frac{x}{4} - 0,5 = \frac{1}{5}\)

\(\frac{x}{4} = \frac{1}{5} + 0,5\)

\(\frac{x}{4} = \frac{7}{{10}}\)

\(x = \frac{{7.4}}{{10}}\)

\(x = \frac{{14}}{5}\)

Vậy \(x = \frac{{14}}{5}\).