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IKMC 2018 - Grades 11-12 - Set 2 - Self-study Question 5

IKMC · IKMC 2018 - Grades 11-12 - Set 2 - Self-study

Question 5

How many real solutions satisfy $2^x+8^x=2\cdot5^x$?
  1. 0
  2. 1
  3. 2
  4. 3
  5. Infinitely many