Write (5−7)2(5 - \sqrt{7})^2(5−7)2 in the form a+b7a + b\sqrt{7}a+b7, where a a\,a and b b\,b are integers.
Practise AQA GCSE Maths Surds with exam-style questions for Foundation and Higher tier. 80 questions, matched to the AQA GCSE Maths (8300) specification and written in Paper 1, Paper 2 and Paper 3 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.