Ответ:
\((\frac14)^{-\frac12}=2\), \(16^{\frac12}=4\), \(2^{-1}=\frac12\), \((\frac1{25})^{-\frac12}=5\), \(8^{-\frac13}=\frac12\).
\(2\cdot4-\frac12\cdot5\cdot\frac12=8-\frac54=\frac{27}{4}\).
Ответ: \(\frac{27}{4}\).
\((\frac14)^{-\frac12}=2\), \(16^{\frac12}=4\), \(2^{-1}=\frac12\), \((\frac1{25})^{-\frac12}=5\), \(8^{-\frac13}=\frac12\).
\(2\cdot4-\frac12\cdot5\cdot\frac12=8-\frac54=\frac{27}{4}\).
Ответ: \(\frac{27}{4}\).