| Exam Board | Edexcel |
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| Module | Paper 2 (Paper 2) |
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| Year | 2020 |
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| Session | October |
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| Topic | Chain Rule |
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- A curve \(C\) has equation \(y = \mathrm { f } ( x )\)
Given that
- \(\mathrm { f } ^ { \prime } ( x ) = 6 x ^ { 2 } + a x - 23\) where \(a\) is a constant
- the \(y\) intercept of \(C\) is - 12
- ( \(x + 4\) ) is a factor of \(\mathrm { f } ( x )\)
find, in simplest form, \(\mathrm { f } ( x )\)