JAMB Mathematics 2018 Objective — Question 12
Question 12 of 39 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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Find the value of x such that 2ˣ × 2ˣ⁺¹ = √32
- A. 3/4Correct
- B. 7/4
- C. 1/4
- D. -3/4
Explanation
2ˣ×2ˣ⁺¹ = 2²ˣ⁺¹. √32 = 32^(1/2) = 2^(5/2). So 2x+1 = 5/2 → x = 3/4.
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