| Exam Board | OCR |
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| Module | H240/01 (Pure Mathematics) |
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| Year | 2018 |
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| Session | June |
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| Topic | Quadratic Functions |
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3 In this question you must show detailed reasoning.
Find the two real roots of the equation \(x ^ { 4 } - 5 = 4 x ^ { 2 }\). Give the roots in an exact form.