In this GCSE Maths tutorial, I walk you through how to expand and simplify the surd expression (√3 √15)². We’ll start by expanding the brackets step-by-step and then simplify the terms carefully to get the final answer in the format n m√5. This is a key skill for GCSE Maths revision, especially for topics like expanding brackets, simplifying surds, and algebra. Whether you’re aiming for a Grade 5 or pushing for a Grade 9, mastering how to expand and simplify surds is essential! Feel free to leav