Write the Expression with Only Positive Exponents and Evaluate If $- 7 ^ { - 4 }$

question 541

Multiple Choice

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
- $- 7 ^ { - 4 }$

• A) 2401
• B) \(\frac { 1 } { 2401 }\)
• C) \(- 2401\)
• D) \(- \frac { 1 } { 2401 }\)

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