Advanced MathEasy–MediumNegative exponent of a fraction
Advanced Math practice question
What is the value of (1/2)⁻³?
Answer: 8
A negative exponent inverts the base: (1/2)⁻³ = 2³ = 8.
Common wrong answers
- If you answered 1/8
- 1/8 is (1/2)³, ignoring the negative sign.
- If you answered -8
- −8 treats the negative exponent as a negative sign.
- If you answered -1/8
- −1/8 both ignores the inversion and adds a sign.
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- Easy–Medium
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For x ≠ 0, which expression is equivalent to (x² + 3x) / x? - Easy–Medium
What are the solutions to the equation 2(x − 3)² − 32 = 0 ?
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