MathematicsIndices, logarithms and surdsJAMB
Solve 4^x − 3(2^x) + 2 = 0.
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Answer: C. x = 0 or 1
Let y = 2^x: y² − 3y + 2 = 0 gives y = 1 or 2, so 2^x = 1 (x = 0) or 2^x = 2 (x = 1).
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.