Write the Expression with Only Positive Exponents and Evaluate If $( 3 x ) ^ { - 2 }$

question 349

Multiple Choice

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
- $( 3 x ) ^ { - 2 }$

• A) \(- 9 x ^ { 2 }\)
• B) \(\frac { 1 } { 9 x ^ { 2 } }\)
• C) \(- \frac { 1 } { 6 x }\)
• D) \(- 6 x\)

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