Prove that the square of the sum of any two consecutive integers is always one more than four times the product of those integers.
Practise Edexcel GCSE Maths Proof with exam-style questions for Foundation and Higher tier. 56 questions, matched to the Edexcel GCSE Maths (1MA1) 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.