In the expansion (x+r)2=x2+2rx+r2(x+r)^2 = x^2 + 2rx + r^2(x+r)2=x2+2rx+r2, how is the number inside the bracket (rrr) related to the xxx coefficient?
It is twice the coefficient of xxx.
It is half the coefficient of xxx.
It is equal to the coefficient of xxx.
It is the square of the coefficient of xxx.
Flashcards for Eduqas GCSE Maths Completing the Square, covering the key formulae, methods and definitions you need to recall for Component 1 and Component 2. 22 cards, matched to the Eduqas GCSE Maths (C300QS) specification.
