Expand (9×11×2×7)^9: Product Raised to Power Expression

To solve this problem, we'll follow these steps:

• Step 1: Identify the expression to be expanded: $(9 \times 11 \times 2 \times 7)^9$
• Step 2: Apply the Power of a Product rule: $(a \times b \times c \times d)^n = a^n \times b^n \times c^n \times d^n$
• Step 3: Distribute the power of 9 to each factor: $9^9 \times 11^9 \times 2^9 \times 7^9$
• Step 4: Recognize that due to the commutative property of multiplication, the order of factors is irrelevant.

Applying the Power of a Product rule:

$(9 \times 11 \times 2 \times 7)^9 = 9^9 \times 11^9 \times 2^9 \times 7^9$

This means that all given answer choices that represent this expression and its commutative orderings are correct solutions. Therefore, the solution to the problem is correctly all answers are equivalent.

Therefore, the correct answer to this problem is: All answers are correct.