To be able to factorise an expression in the form ax + bx + kay + kby.
To be able to factorise quadratics when the coefficient of x^2 isn't 1.
To be able to find stationary points on a curve.
To be able to determine the nature of a stationary point to state if it is a maximum or minimum.
To be able to write a quadratic expression in completed square form.
To be able to solve quadratic equations by completing the square.