Edexcel GCSE Modular Mathematics Higher Unit 3 Student Book (old Unit 4) by etc.
This book provides complete coverage of all the Higher Unit 4 examination topics. Written by an experienced author team, including Senior Examiners, it covers everything students need to help them achieve their full learning potential. It contains examples, practice exercises and examiners' tips to ensure students are fully prepared for their exams. It features comprehensive worked examples showing exactly how to approach different questions. It offers clear explanations of key concepts to aid students' understanding.