Question

(-2) elevado a -3+(-1)elevado a -4

Answer 1

  

(-2) elevado a -3+(-1)elevado a - 4
(-2)^-3+(-1)^-4
  - 1  + 1 ==> - 1 + 8 ==> 7
    8                    8          8

Answer 2

$(-2) ^{-3} +(-1) ^{-4}=$

$(- \frac{1}{2})^3+(- \frac{1}{1})^4=$

$- \frac{1}{8}+1= \frac{-1+8}{8}= \frac{7}{8}$