GCSE Secondary Maths Age 13-17 - Algebra: Functions - Explained

The video tutorial introduces functions f and g, with f(x) = 2/x^2 and g(x) = 4x^3, and explains how to solve problems involving these functions. Part A covers calculating f(-5) by substituting -5 into the function and ensuring correct squaring. Part B discusses composite functions, specifically fg(1), emphasizing the importance of order in solving such problems. The tutorial highlights the need for understanding these new GCSE topics, as they are not found in previous exam papers.

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