Question

1)(-4)elevado a -2
2)11²

Answer 1

$(- 4)^{-2} = (- \frac{4}{1})^{-2} \\ \\ (- \frac{1}{4})^{2} = (- \frac{1}{4}) . (- \frac{1}{4}) = \frac{1}{16}$


$11^{2} = 11 . 11 = 121$


Espero ter ajudado