Question

номер 4. ........,,,,,,,................

Answer 1

$sqrt[4]{ frac{1}{81} } - 2 * sqrt{0,64} = frac{1}{3} - 2 * 0,8 = frac{1}{3} - 2 frac{8}{10} = frac{1}{3} - frac{8}{5} = frac{5}{15} - frac{24}{15} = - frac{19}{15} =$ = - 1 4/15

$sqrt[3]{ -frac{1}{8} } + 6 * sqrt[5]{ frac{1}{32} }$ =-1/2 + 6*1/2 = -1/2 + 6/2 =- 1/2 + 6/2 = 5/2 = 2,5 = 2 1/2