2024 CCHY P1 Q8

2024 CCHY P1 Q8

5 marks

Simplify \(2^{3x - 4} \times 9^{x - 3} = 6^{2(x - 2)}\) in the form \(\left(\frac{m \times n}{36}\right)^x = 9\), where \(m\) and \(n\) are integers.

Hence solve for \(x\), giving your answer in the simplest form \(\frac{\ln a}{\ln b}\), where \(a\) and \(b\) are integers.[5]

Solution:

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Answer:\(\left(\dfrac{8\times9}{36}\right)^x=9\) \(x=\dfrac{\ln9}{\ln2}\)

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