Simplify $\left( 27 x ^ { 3 } y ^ { 3 } \right) ^ { - \frac { 2 } { 3 } }$

question 253

Multiple Choice

Simplify: $\left( 27 x ^ { 3 } y ^ { 3 } \right) ^ { - \frac { 2 } { 3 } }$

• A) \(\frac { 1 } { 9 x ^ { 2 } y ^ { 2 } }\)
• B) \(\frac { 1 } { 68 x ^ { 2 } y ^ { 2 } }\)
• C) \(\frac { 27 } { x ^ { 2 } y ^ { 2 } }\)
• D) \(- \frac { 9 } { x ^ { 2 } y ^ { 2 } }\)

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