16Hit1600
Advanced MathVery hardEquating powers of 4 and 2

Advanced Math practice question

If 4ˣ = 2^(x + 3), what is the value of x?

Answer: 3

4ˣ = 2^(2x), so 2x = x + 3 and x = 3.

Common wrong answers

If you answered 6
6 doubles 3.
If you answered 1.5
1.5 halves 3, dividing instead of subtracting.
If you answered -3
−3 has the sign wrong.

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