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

question 400

Multiple Choice

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

• A) \(- 4 x\)
• B) \(- \frac { 1 } { x ^ { 4 } }\)
• C) \(4 \mathrm { x }\)
• D) \(\frac { 1 } { x ^ { 4 } }\)

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