Completing the Square (AQA GCSE Maths): Flashcards

$(x + m)^2 + n$

$(-m, n)$

$\frac{b}{2}$ (divide coefficient of $x$ by 2)

$\pm$ (both positive and negative solutions)

Factor out the coefficient of $x^2$

$\frac{b}{2a}$

$x = -m$

Graph never crosses x-axis

$c - \left(\frac{b}{2}\right)^2$

Difference between expanded bracket and original expression