Multiply Assume That Variables Used as Exponents Represent Positive Integers $$9 x ^ { 2 } y ^ { n } \left( - 3 x y ^ { n } + 1 + 2 \right)$$

question 70

Multiple Choice

Multiply. Assume that variables used as exponents represent positive integers.
- $$9 x ^ { 2 } y ^ { n } \left( - 3 x y ^ { n } + 1 + 2 \right)$$

• A) \(- 27 x ^ { 3 } y ^ { n ^ { 2 } + 1 } + 18 x ^ { 2 } y ^ { n }\)
• B) \(- 27 x ^ { 3 } y ^ { 2 n } + 18 x ^ { 2 } y ^ { n }\)
• C) \(- 27 x ^ { 2 } y ^ { 2 n } + 1 + 18 x ^ { 2 } y ^ { n }\)
• D) \(- 27 \mathrm { x } ^ { 3 } \mathrm { y } ^ { 2 \mathrm { n } + 1 } + 18 \mathrm { x } ^ { 2 } \mathrm { y } \mathrm { n }\)

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Definitions:

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