2026 IGCSE Additional Mathematics May/June 0606/13 Q3

2026 IGCSE Additional Mathematics May/June 0606/13 Q3

12 marks
  1. Solve the equation \(\log_x9=\log_9(x^4)\).[4]
  2. Solve the equation \(2^{2x-2}+3(2^x)-40=0\).[4]
  3. Solve the equation \(\left|x^2+3x-4\right|=6\).[4]

Solution:

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Answer:(a) \(x=3,\dfrac13\) (b) \(x=3\) (c) \(x=-5,-2,-1,2\)

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