An example taken from a past maths paper on completing the square for a quadratic expression and using it to find the vertex of a quadratic graph.
COMPLETING THE SQUARE PLAYLIST at [ Ссылка ]
EXAMSOLUTIONS WEBSITE at [ Ссылка ] where you will have access to all playlists covering pure maths, statistics and mechanics.
YOUTUBE CHANNEL at [ Ссылка ]
THE BEST THANK YOU: [ Ссылка ]
