JAMB Mathematics 2020 Objective — Question 30
Question 30 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2020 Objective paper, with the correct answer and a full explanation.
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Find the value of x for which 2(3^(2x-1))=162.
- A. 3/2
- B. 4
- C. 6
- D. 5/2Correct
Explanation
3^(2x-1)=81=3^4. 2x-1=4. x=5/2.
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