Question: The functions f and g are defined by f(x) = 3x 2, x g(x) = x 2 , x a.

The functions f and g are defined by

f(x) = 3x − 2, x ∈ ℝ

g(x) = x2, x ∈ ℝ

a. Find an expression for fg(x).

b. Solve fg(x) = gf(x).

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