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1959 AMC 12 Question 23

AMC12 · 1959 AMC 12

Question 23

The set of solutions for the equation $\log_{10}(a^2-15a)=2$ consists of:
  1. two integers
  2. one integer and one fraction
  3. two irrational numbers
  4. two non-real numbers
  5. no numbers, that is, the set is empty