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2026 IGCSE Additional Mathematics February/March 0606/12 Q10
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2026 IGCSE Additional Mathematics February/March 0606/12 Q10
10 marks
Given that \(\log_5(x^2)-\log_5x-3\log_x5=2\), find \(x\).
[6]
Solve the equation \(2\times8^{2x+1}-3\times2^{3x+4}-64=0\).
[4]
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Answer:
(a) \(x=125\) or \(x=\dfrac15\) (b) \(x=\dfrac23\)
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