Advanced MathMediumExponent that is a multiple of x
Advanced Math practice question
If 2^(2x) = 64, what is the value of x?
Answer: 3
64 = 2⁶, so 2x = 6 and x = 3.
Common wrong answers
- If you answered 6
- 6 is the exponent 2x, not x itself.
- If you answered 12
- 12 is 6 × 2, multiplying instead of dividing by the 2 in 2x.
- If you answered 32
- 32 is 64/2, dividing the value instead of matching exponents.
More Advanced Math questions
- Medium
What are the solutions to x² − 5x + 6 = 0? - Medium
The graph of f(x) = (x − 3)² + 4 is a parabola. What are the coordinates of its vertex? - Medium
If x² − 2x − 8 = (x + 2)(x − a), what is the value of a? - Medium
If √(x + 5) = 4, what is the value of x? - Medium
If f(x) = x + 3 and g(x) = 2x, what is f(g(4))? - Medium
What are the solutions to x² + 6x + 8 = 0?
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