Systems & Polynomial Equations
Using your GDC to solve systems of linear equations in up to three variables and polynomial equations — including word problems, intersections of curves, and equations arising in real-world contexts (syllabus 1.8).
Start practising → Formula sheet (PDF) ↗Sample questions
- Easy Solve a 2×2 system Calculator [3]
- Medium Solve a 3×3 system Calculator [4]
- Hard Three-item word problem Calculator [5]
About this topic
These are original, exam-style questions written to match the IB Mathematics syllabus for Applications & Interpretation SL (Topic 1.8). Every question has a full worked solution with mark allocations matching real IB marking schemes, plus graphics-calculator key sequences for the simultaneous-equation and polynomial-root solvers.
How to practise
- Open the question bank using the button above.
- Attempt the question, writing out your working.
- Reveal the full worked solution and compare your method step by step.
- Use the difficulty and calculator filters to focus on what you need most.