How do you simplify $\frac{1}{2^{- 3}}$ $1/2^-3$ and write it using only positive exponents?

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Answer 1 · 2016-09-11T15:42:59

$= 8$ $=8$

$\frac{1}{2^{- 3}}$ $1/2^-3$

$= 2^{3}$ $=2^3$

$= 8$ $=8$

Answer 2 · 2016-09-11T16:44:24

to make the exponent positive,apply the rule of indices i.e. $a-²=1/a²$ .
2³=222
=8

How do you simplify 1/2^-312−31/2^-3 and write it using only positive exponents?