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Mathematics, 15.12.2021 04:00 sksksksksk1

Help! 20 Points! + Brainliest! Which expressions have been simplified correctly? Choose exactly two answers that are correct. xy^-3=1/xy^3
z^-2=1/z^2
2^-4=-16
(ab)^0=1


Help! 20 Points! + Brainliest! Which expressions have been simplified correctly? Choose exactly two

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