Advanced MathMediumPositive solution of an exponential equation with a squared exponent
Advanced Math practice question
If 2^(x²) = 16, what is the positive value of x?
Answer: 2
16 = 2⁴, so x² = 4 and the positive solution is x = 2.
Common wrong answers
- If you answered 4
- 4 is x², not x.
- If you answered 8
- 8 comes from 16 ÷ 2.
- If you answered -2
- −2 is a solution but not the positive one.
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