Question

Como se resolve ??
Obs : As setas significam os expoentes

Answer 1

$\ [ (-\dfrac{1}{2})^4 \div (-\dfrac{1}{2})^3 \ ] . (-\dfrac{1}{2})^6 + 2^-^7 \\ \\ \\ \ [ \dfrac{1}{16} \div (-\dfrac{1}{8}) \ ] . \dfrac{1}{64} + \dfrac{1}{128}$

$[ \dfrac{1}{16} . \dfrac{-8}{1} \ ] . \dfrac{1}{64} + \dfrac{1}{128}$

$[ \dfrac{-1}{2} \ ] . \dfrac{1}{64} + \dfrac{1}{128}$

$\dfrac{-1}{128} + \dfrac{1}{128} = 0$