Write x2+10x+7x^2 + 10x + 7x2+10x+7 in the form (x+a)2+b(x + a)^2 + b(x+a)2+b where a a\,a and b b\,b are integers.
250 exam-style questions on Eduqas GCSE Maths Completing the Square. Each one has a worked solution and a mark scheme showing where the marks go.