16Hit1600
Advanced MathMediumFractional power from a known square root

Advanced Math practice question

If x^(1/2) = 3, what is the value of x^(3/2)?

Answer: 27

x^(3/2) = (x^(1/2))³ = 3³ = 27. (Equivalently, x = 9 and 9^(3/2) = 27.)

Common wrong answers

If you answered 9
9 is x itself.
If you answered 81
81 is x², a slip in the exponent.
If you answered 4.5
4.5 is 3 × 3/2, multiplying instead of raising to a power.

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