Solve the exponential equation: 5^(2x - 1) = 125^(x - 3).

✓ Correct Answer: Option C

Rewrite with a common base: 5^(2x - 1) = (5³)^(x - 3). This simplifies to 5^(2x - 1) = 5^(3x - 9). Equate the exponents: 2x - 1 = 3x - 9. Solving for x yields x = 8.