Question: 3 Let f(x) = x2 - 9 and g(x) = 9 - 2x. We define the compositon of f and g by (g . f)

3 Let f(x) = x2 - 9 and g(x) = 9 - 2x. We define the compositon of f and g by (g . f) (x) = g(f(x)). (Note the order of f and g.) (a) Find (g . f) (x). Expand. (b) Find (fog) (x). Expand

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