# Topic Questions: 6.4 Analytical solution of simple first order differential equations with separable variables. — WMA14 Integration > 42 WMA14 Integration topic questions (168 marks) on 6.4 Analytical solution of simple first order… — 21 papers, 2020–2026. Open the exact question in the… - Canonical HTML: https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-4-analytical-solution-of-simple-first-order-differential-equations-with-separable/ - Markdown mirror: https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-4-analytical-solution-of-simple-first-order-differential-equations-with-separable/index.md --- Edexcel IAL · Mathematics · WMA14 · Integration 42 WMA14 Integration topic questions are tagged to this syllabus point across 21 papers (2020–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 42 topic questions - 21 papers - 168 tagged marks - 31.1% of topic questions - 28.0% of topic marks - 2020–2026 - Syllabus 2018–current - [All WMA14 Integration topic questions](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Integration syllabus point appears in 21 WMA14 papers across 2020–2026, contributing 42 topic questions and 168 marks.** The most recent appearance is WMA14/01 January 2026. That equals 31.1% of the 135 topic questions and 28.0% of the 601 marks tagged to Integration. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history. ## Topic questions by session Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub. | Paper | Question | Type | Parts | Marks | Difficulty | Practice | | --- | --- | --- | --- | --- | --- | --- | | [**WMA14/01** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2026-january-wma14-01/#q-8) | **Q8** Differential Equations - Edexcel IAL Pure Mathematics P4 January 2026 Q8 | FRQ | 2 of 3 parts ((b), (c)) | 7 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=01814720-f628-4363-824d-04d86862c595&question_id=4b05d526-ce0a-46ee-a0c1-2c03389d0ea1&source_detail=WMA14%2F01+January+2026) | | [**WMA14/02** January 2026 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2026-january-wma14-02/#q-3) | **Q3** Differential Equations - Edexcel IAL P4 Jan 2026 Q3 | FRQ | 2 parts ((a), (b)) | 8 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=1ef341d9-dc66-49d2-811c-2d41715c9b3e&question_id=bbfceda1-a7d4-4a2a-a765-c00bed5fc668&source_detail=WMA14%2F02+January+2026) | | [**WMA14/01** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2025-october-wma14-01/#q-8) | **Q8** First Order Differential Equations - Edexcel IAL P4 Oct 2025 Q8 | FRQ | 2 parts ((a), (b)) | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=3b3d8beb-4c9b-4fe1-a154-b99774358182&question_id=35b37a08-4f87-4a94-8d9b-c8799c53a3e3&source_detail=WMA14%2F01+October+2025) | | [**WMA14/02** October 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2025-october-wma14-02/#q-7) | **Q7** Edexcel IAL Pure Mathematics P4 October 2025 Q7 | FRQ | 2 of 3 parts ((b), (c)) | 8 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=2ed47daa-4b41-4255-a270-bda15ecc9626&question_id=7f972038-d072-4fa5-bc41-b87a1b773bbc&source_detail=WMA14%2F02+October+2025) | | [**WMA14/01** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2025-june-wma14-01/#q-3) | **Q3** Differential Equations - Edexcel IAL P4 2025 Jun Q3 | FRQ | 1 part | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=e5f08dce-a8ed-4763-a6e9-460eaffaacb2&question_id=ad6f4d96-f3fe-4051-96b0-bd7aedba79d1&source_detail=WMA14%2F01+June+2025) | | [**WMA14/02** June 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2025-june-wma14-02/#q-3) | **Q3** First Order Differential Equations - Edexcel IAL Pure Mathematics P4 June 2025 Q3 | FRQ | 1 part | 5 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=992b70cd-b32e-4429-9eb8-645b6a329575&question_id=d4f1286d-cb4c-4678-a855-964e47470c7b&source_detail=WMA14%2F02+June+2025) | | [**WMA14/01** January 2025 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2025-january-wma14-01/#q-4) | **Q4** Connected Rates of Change and Differential Equations - Edexcel IAL P4 Jan 2025 Q4 | FRQ | 1 of 2 parts ((ii)) | 6 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9827509f-6f1b-4a4a-9ed7-f23750890864&question_id=00054959-28a2-44e7-8272-3e2560d65649&source_detail=WMA14%2F01+January+2025) | | [**WMA14/01** October 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2024-october-wma14-01/#q-9) | **Q9** Differential Equations - Edexcel IAL Pure Mathematics P4 October 2024 Q9 | FRQ | 2 of 3 parts ((b), (c)) | 8 of 10 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=818ed8d6-ed50-4051-8806-235d26280bb8&question_id=6761c75c-7b64-4625-b378-f91123062627&source_detail=WMA14%2F01+October+2024) | | [**WMA14/01** June 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2024-june-wma14-01/#q-7) | **Q7** Differential Equations - Edexcel IAL P4 June 2024 Q7 | FRQ | 3 parts ((a), (b), (c)) | 11 | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=9ed669a1-01ca-4b8f-a59a-438445287cc2&question_id=7c4ac2c9-4547-4abc-bb21-e8d8087ddd73&source_detail=WMA14%2F01+June+2024) | | [**WMA14/01** January 2024 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2024-january-wma14-01/#q-5) | **Q5** Integration by Parts and Differential Equations - Edexcel IAL P4 Jan 2024 Q5 | FRQ | 1 of 2 parts ((b)) | 5 of 9 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=fcc8c564-c186-42fa-9b05-14ed7b38504c&question_id=a440c478-587c-4d2b-9bfa-5b5966530cb4&source_detail=WMA14%2F01+January+2024) | | [**WMA14/01** October 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2023-october-wma14-01/#q-7) | **Q7** Modeling with Differential Equations - Edexcel IAL Pure Mathematics P4 October 2023 Q7 | FRQ | 2 of 5 parts ((d), (e)) | 6 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=594af3aa-0f62-4fe0-9862-aa94eeac669d&question_id=a1e996a1-46bc-4e47-bfbb-eb6e1d878de3&source_detail=WMA14%2F01+October+2023) | | [**WMA14/01** June 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2023-june-wma14-01/#q-6) | **Q6** Differential Equations - Edexcel IAL Pure Mathematics P4 June 2023 Q6 | FRQ | 2 parts ((a), (b)) | 9 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5cfdb080-aee3-4f93-a2ac-18ace84abb4c&question_id=6cf4d132-1393-458d-be8c-e741fc948f40&source_detail=WMA14%2F01+June+2023) | | [**WMA14/01** January 2023 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2023-january-wma14-01/#q-7) | **Q7** Rates of Change and Differential Equations - Edexcel IAL P4 Jan 2023 Q7 | FRQ | 3 of 5 parts ((b)(i), (b)(ii), (c)) | 8 of 12 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=8667aebf-7383-4d7a-95f6-44d90e1679f7&question_id=4859a7ed-76ec-40bb-b9d9-0c8e4c7531f9&source_detail=WMA14%2F01+January+2023) | | [**WMA14/01** October 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2022-october-wma14-01/#q-10) | **Q10** Edexcel IAL Pure Mathematics P4 October 2022 - Q10 | FRQ | 3 parts ((a), (b), (c)) | 8 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=271df557-f5bc-44c2-bea4-2f5bb33748ee&question_id=cab95868-8e40-4b7c-892e-f1c71d2c0c4a&source_detail=WMA14%2F01+October+2022) | | [**WMA14/01** June 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2022-june-wma14-01/#q-2) | **Q2** Partial Fractions and Differential Equations - Edexcel IAL Pure Mathematics P4 June 2022 Q2 | FRQ | 1 of 2 parts ((b)) | 6 of 9 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=b3c66ada-05c9-4469-80e5-08814dea519b&question_id=bc7d492a-c790-4b9b-849c-109c8ce1cc64&source_detail=WMA14%2F01+June+2022) | | [**WMA14/01** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2022-january-wma14-01/#q-9) | **Q9** Differential Equations - Edexcel Jan 2022 WMA14 Q9 | FRQ | 2 of 3 parts ((b), (c)) | 9 of 11 on the paper | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=11139112-1bb3-44c2-a379-aa10db02c03c&question_id=d06d2d9d-1d37-43b9-886c-6f6a18909d62&source_detail=WMA14%2F01+January+2022) | | [**WMA14/02** January 2022 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2022-january-wma14-02/#q-7) | **Q7** Differential Equations - Edexcel IAL P4 Jan 2022 Q7 | FRQ | 3 parts ((a), (b), (c)) | 11 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=4bcb8c35-64c0-46bc-8364-24f3dc996da9&question_id=792a96d3-77b9-4c2c-885c-9a059f896141&source_detail=WMA14%2F02+January+2022) | | [**WMA14/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2021-october-wma14-01/#q-2) | **Q2** Separable Differential Equations - Edexcel IAL P4 Oct 2021 Q2 | FRQ | 1 part | 6 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ba3c9e37-034d-45b4-88bd-2842c5af7ff2&question_id=d5360527-64fe-455c-a4e5-7e3ab60837b6&source_detail=WMA14%2F01+October+2021) | | [**WMA14/01** October 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2021-october-wma14-01/#q-9) | **Q9** Formulating and Solving Differential Equations - Edexcel IAL P4 Oct 2021 Q9 | FRQ | 1 of 2 parts ((b)) | 6 of 10 on the paper | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=ba3c9e37-034d-45b4-88bd-2842c5af7ff2&question_id=86bde0a2-3911-4264-8f32-a6315ecd2c04&source_detail=WMA14%2F01+October+2021) | | [**WMA14/01** June 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2021-june-wma14-01/#q-8) | **Q8** Differential Equations - Edexcel IAL Pure Mathematics P4 June 2021 Q8 | FRQ | 2 parts ((a), (b)) | 9 | Hard | [Go to Practice Hub](https://www.examsci.com/practice?set_id=bb0e5d74-7729-4d77-87a2-c3625132f41a&question_id=8e071a5c-affd-490c-bfcf-3bd55284f53e&source_detail=WMA14%2F01+June+2021) | | [**WMA14/01** January 2021 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2021-january-wma14-01/#q-10) | **Q10** Partial Fractions and Differential Equations - Edexcel IAL P4 Jan 2021 Q10 | FRQ | 3 of 4 parts ((b), (c), (d)) | 11 of 14 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=98deed38-1ae0-4202-9bd1-7d806c5f6b9e&question_id=1379e0b2-b339-422f-a76b-a1cd84f5dd65&source_detail=WMA14%2F01+January+2021) | | [**WMA14/01** October 2020 · Edexcel IAL](https://www.examsci.com/past-papers/edexcel-ial/mathematics/pure-mathematics-4-wma14/2020-october-wma14-01/#q-9) | **Q9** Separable Differential Equations - Edexcel IAL Pure Mathematics P4 October 2020 Q9 | FRQ | 2 parts ((a), (b)) | 9 | Medium | [Go to Practice Hub](https://www.examsci.com/practice?set_id=5448e252-ff97-44fd-b64d-cd9dd142915c&question_id=0b65d968-e887-40d9-b583-e5fe0ff02591&source_detail=WMA14%2F01+October+2020) | ## Related topic questions in Integration - [6.1 Evaluation of volume of revolution.](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-1-evaluation-of-volume-of-revolution/) — 30 question items · 21 papers — 134 marks · 2020–2026 - [6.2 Simple cases of integration by substitution and integration by parts. Understand these methods as the reverse processes of the chain and product rules respectively.](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-2-simple-cases-of-integration-by-substitution-and-integration-by-parts-understand/) — 52 question items · 21 papers — 257 marks · 2020–2026 - [6.3 Simple cases of integration using partial fractions.](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-3-simple-cases-of-integration-using-partial-fractions/) — 21 question items · 18 papers — 110 marks · 2020–2026 - [6.5 Use integration to find the area under a curve given its parametric equations.](https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-5-use-integration-to-find-the-area-under-a-curve-given-its-parametric-equations/) — 16 question items · 13 papers — 71 marks · 2021–2026 ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 22 question stems cover this subtopic across 21 papers, but only 42 tagged parts and 168 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page. **Which papers include this subtopic?** The table lists every matching session from 2020–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available. **Why can one question appear under several subtopics?** The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement. **Can I practise these questions with AI marking?** Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/edexcel-ial/mathematics/pure-mathematics-4-wma14/integration/6-4-analytical-solution-of-simple-first-order-differential-equations-with-separable/