Solve for the exponent: If 289 = 17^(x/5), find the value of x.

Difficulty: Easy

Correct Answer: 10

Explanation:


Introduction / Context:
Recognize perfect powers: 289 is 17 squared. Equating exponents on the same base determines x straightforwardly.


Given Data / Assumptions:

  • 289 = 17^(x/5)
  • 17^2 = 289


Concept / Approach:
Rewrite 289 as 17^2. Then match exponents: x/5 = 2, solve for x by multiplying both sides by 5.


Step-by-Step Solution:
17^(x/5) = 17^2 ⇒ x/5 = 2x = 2 * 5 = 10


Verification / Alternative check:
Substitute back: 17^(10/5) = 17^2 = 289, correct.


Why Other Options Are Wrong:
They result from mis-scaling the fraction or confusing 289 with another square.


Common Pitfalls:
Forgetting to multiply by 5; ensure exact base matching before equating exponents.


Final Answer:
10

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