| Exam Board | CAIE |
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| Module | P2 (Pure Mathematics 2) |
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| Year | 2019 |
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| Session | November |
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| Topic | Modulus function |
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2
- Solve the equation \(| 4 x + 5 | = | x - 7 |\).
- Hence, using logarithms, solve the equation \(\left| 2 ^ { y + 2 } + 5 \right| = \left| 2 ^ { y } - 7 \right|\), giving the answer correct to 3 significant figures.