Answer :

LammettHash

"f o g" denotes the composition of f with g,

(f o g)(x) = f(g(x))

Given f(x) = x² + 2 and g(x) = 4x, we have

(f o g)(x) = f(4x) = (4x)² + 2

⇒   (f o g)(x) = 16x² + 2

Then (f o g)(0) = 2.

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