2025 IGCSE Additional Mathematics May/June 0606/11 Q8

2025 IGCSE Additional Mathematics May/June 0606/11 Q8

7 marks
  1. Write down the set of values of \(x\) for which \(\log_5(12x-4)\) exists.[1]
  2. Solve the equation \(\log_5(12x-4)=\dfrac6{\log_x125}+1\).[6]

Solution:

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Answer:(a) \(x>\dfrac13\) (b) \(x=\dfrac25\) or \(x=2\)

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