How do you calculate the constant inside the square bracket when completing the square for x2+bxx^2 + bxx2+bx?
Halve the coefficient bbb.
Square the coefficient bbb.
Negate the coefficient bbb.
Double the coefficient bbb.
Flashcards for Oxford AQA IGCSE Maths Completing the Square, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E). 1 card, matched to the Oxford AQA IGCSE Maths (9260) specification.