Question

Help! 20 Points! + Brainliest! Which expressions have been simplified correctly? Choose exactly two answers that are correct.

Answer 1

$\huge\underline\mathtt\colorbox{gold}{B}$

{z^-2=1/z^2}

AND

$\huge\underline\mathtt\colorbox{silver}{D}$

{(ab)^0=1}

Are both correct