Question

$\sqrt[7]{1/128}+ \frac{2}{5} \sqrt{100}$

Answer 1

$\sqrt[7]{ \frac{1}{128} } + \frac{2}{5} \sqrt{100} \sqrt[7]{ \frac{1}{128} } + \frac{2}{5} 10}= \sqrt[7]{ \frac{1}{128} } + \frac{20}{5}}= \sqrt[7]{ \frac{1}{128} } +4 2^{7} =128 \sqrt[7]{ \frac{1}{128} } + 4= \frac{1}{2}+4= \frac{1+8}{2}= \frac{9}{2}=4,5$