1) \(x=\frac{8}{-3}-\frac{1}{2}=\frac{-19}{6}\)
2) \(\left(\frac{-5}{3}\right)^3=\frac{-125}{27}\)
\(\frac{-24}{35}.\frac{-5}{6}=\frac{4}{7}\)
Mà \(\frac{-125}{27}<0<\frac{4}{7}\)
=> \(x=0\)
3) \(\left(7.x-11\right)^3=343\)
=> \(\left(7.x-11\right)^3=7^3\)
=> \(7.x-11=7\)
=> \(x=\frac{7+11}{7}=\frac{18}{7}\)