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4 votes
Rewrite the following exponential expressions as equivalent radical expressions. If the number is rational, write it without radicals or exponents.

27^(−2/3)

User Yina
by
5.0k points

2 Answers

3 votes

Answer:

1/9

Explanation:

simplify

27^(-2/3)

= 1/27^(2/3)

= 1/[27^(1/3)]²

= 1/{[3×3×3]^(1/3)}²

= 1/3²

= 1/9

it's easy

User Kelvin  Zhang
by
6.1k points
5 votes

Answer:

The answer to your question is:
(1)/(9)

Explanation:

Data

27⁻²/³

Process


(1)/(27^(2/3) )


\frac{1}{\sqrt[3]{27^(2)}}

27 = 3³

=
\frac{1}{\sqrt[3]{3^(3)^2} }

=
\frac{1}{\sqrt[3]{3^(6) } }

=
(1)/(3^(6/3))

=
(1)/(9)

User Tinkerbelle
by
5.3k points