Question

me ajudem, estou até agora tentando resolver esta pergunta.​

Answer 1

$(\frac{-1}{4})^2-\frac{3}{7}[\frac{1}{6}-(\frac{-1}{2})^3]\\\\\frac{(-1)^2}{4^2}-\frac{3}{7}[\frac{1}{6}-\frac{(-1)^3}{2^3}]\\\\\frac{1}{16}-\frac{3}{7}[\frac{1}{6}-\frac{-1}{8}]\\\\\frac{1}{16}-\frac{3}{7}[\frac{1}{6}.\frac{24}{24}-(\frac{-1}{8}.\frac{24}{24})]\\\\\frac{1}{16}-\frac{3}{7}[\frac{1.4}{24}-(\frac{-1.3}{24})]\\\\\frac{1}{16}-\frac{3}{7}[\frac{4}{24}+\frac{3}{24}]\\\\\frac{1}{16}-\frac{3}{7}[\frac{7}{24}]\\\\\frac{1}{16}-\frac{3}{24}$

$\frac{1}{16}.\frac{48}{48}-\frac{3}{24}.\frac{48}{48}\\\\\frac{1.3}{48}-\frac{3.2}{48}\\\\\frac{3}{48}-\frac{6}{48}\\\\\frac{-3}{48}\\\\\frac{-1}{16}$