Write x2+6x+11x^2 + 6x + 11x2+6x+11 in the form a(x+b)2+ca(x + b)^2 + ca(x+b)2+c where aaa, bbb, and c c\,c are integers.
Hence, or otherwise, write down the coordinates of the turning point of the graph of y=x2+6x+11y = x^2 + 6x + 11y=x2+6x+11
250 exam-style questions on OCR GCSE Maths Completing the Square. Each one has a worked solution and a mark scheme showing where the marks go.