Simplify Assume That Variables Represent Positive Real Numbers $$\sqrt [ 4 ] { - 81 x ^ { 8 } y ^ { 12 } }$$

question 57

Multiple Choice

Simplify. Assume that variables represent positive real numbers.
- $$\sqrt [ 4 ] { - 81 x ^ { 8 } y ^ { 12 } }$$

• A) \(- 81 x ^ { 2 } y ^ { 8 }\)
• B) not a real number
• C) \(- 3 x ^ { 2 } y ^ { 3 }\)
• D) \(- 3 x ^ { 4 } y ^ { 8 }\)