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UI Post-UTME Mathematics 2023 (Model questions) Question 21

Question 21

Indices

2x+1 = 16, find x

  1. A.1
  2. B.2
  3. C.3
  4. D.4
Show the answer and explanation

Answer: C (3)

Explanation

16 = 2⁴, so x + 1 = 4 and x = 3.