Write 4x2−16x+74x^2 - 16x + 74x2−16x+7 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=4x2−16x+7y = 4x^2 - 16x + 7y=4x2−16x+7
Practise OCR GCSE Maths Completing the Square with exam-style questions for Foundation and Higher tier. 56 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.