7
QuizMultiple Choice

Exponential and Logarithmic Functions: Part Two — Test

Question 7 • Advanced Algebra: Concepts and Connections

For what value of x does 3 raised to the 4 x power is equal to 27 raised to the x minus 3 power ?

Answer
A
negative 3
B
3
C
9
D
negative 9

Explanation

Rewrite 27 as 3³, so the equation becomes 3⁴ˣ = 3³⁽ˣ⁻³⁾. Since the bases are equal, set the exponents equal: 4x = 3(x − 3), which gives 4x = 3x − 9 and x = −9. The correct choice is negative 9.

AI-written and checked against the verified answer.

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