WAEC Mathematics 2022 Question 6

Question 6

Indices

If 43x = 16x + 1, find the value of x.

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

Answer: B (2)

Explanation

16 = 42, so 3x = 2(x + 1) = 2x + 2, giving x = 2.