How do you simplify $-16^(-2/3)$ ?

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Answer 1 · 2018-07-19T10:14:43

$-2^{-8/3}$

Given that

$-16^{-2/3}$

$=-(2^4)^{-2/3}$

$=-(2)^{-4\cdot 2/3}$

$=-2^{-8/3}$

Answer 2 · 2018-07-19T10:38:08

$-16^(-2/3)=-1/16^(2/3)$

$16=2xx2xx2xx2=2^4$

$-1/(2^4)^(2/3)$

$-1/2^(8/3)$

$-1/root(3)256$

How do you simplify -16^(-2/3)-16^(-2/3)?