Write (3+5)2(3 + \sqrt{5})^2(3+5)2 in the form a+b5a + b\sqrt{5}a+b5, where a a\,a and b b\,b are integers.
Practise Oxford AQA IGCSE Maths Surds with exam-style questions for Core and Extended tier. 20 questions, matched to the Oxford AQA IGCSE Maths (9260) specification and written in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.