Leaving Cert HL - Key Equations

This set of 5 books will teach you all your higher level leaving cert algebra and the key equations that are used in every other topic at this level. Learn how to use algebra to make your key equations, learn how to recognise which of your key equations you are making and therefore based on the type you are making: learn how to solve them. The key equations are so important because they are the equations you use in every other topic.