Simplify the Exponential Expression $$\left( 9 x ^ { 16 } y ^ { - 18 } \right) ^ { 5 / 2 }$$

question 205

Multiple Choice

Simplify the exponential expression. Write any negative exponents as positive exponents. Assume all variables represent positive real numbers.
- $$\left( 9 x ^ { 16 } y ^ { - 18 } \right) ^ { 5 / 2 }$$

• A) \(\frac { 243 x ^ { 40 } } { y ^ { 45 } }\)
• B) \(243 x ^ { 40 } y ^ { 45 }\)
• C) \(\frac { 9 x ^ { 40 } } { y ^ { 45 } }\)
• D) \(\frac { 243 } { \mathrm { x } ^ { 40 } \mathrm { y } ^ { 45 } }\)

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