Algebra-1

Question Analysis
This question tests the student's ability to simplify an expression involving negative exponents by applying the rules of exponents.

Key Concept Explanation
The key concept here is the rule for multiplying powers with the same base, which states that when you multiply two powers with the same base, you add their exponents. Additionally, the definition of negative exponents is used to rewrite the expression with positive exponents.

Step-by-step Solution
1. Apply the exponent rule for multiplication:
2. The simplified expression is

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