16Hit1600
Advanced MathMediumFractional exponent raised to a power

Advanced Math practice question

For x > 0, which expression is equivalent to (x^(1/3))⁶?

  1. A. Correct
  2. B.
  3. C. x^(1/2)
  4. D. x¹⁸

Answer: A. x²

A power of a power multiplies the exponents: (1/3) × 6 = 2. So (x^(1/3))⁶ = x².

Why the other answers are wrong

B.
x³ would come from 6/2; the exponent is 6 × 1/3 = 2.
C. x^(1/2)
x^(1/2) comes from 1/3 + ... or dividing; multiply the exponents: 6 × 1/3.
D. x¹⁸
x¹⁸ divides 6 by 1/3 instead of multiplying by it.

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