JAMB Mathematics 2004 Question 6

Question 6

Indices

Given that ∛(42x) = 16, find the value of x.

  1. A.2
  2. B.3
  3. C.4
  4. D.6
Show the answer and explanation

Answer: B (3)

Explanation

∛(42x) = 42x/3 and 16 = 42, so 2x/3 = 2 and x = 3.