Answer:
Choice A
Explanation:
f(x) - g(x)
x^3 - 4x + 2 - (x - 2)^2
x^3 - 4x + 2 - (x^2 - 2x - 2x + 4)
x^3 - 4x + 2 - (x^2 - 4x + 4)
x^3 - 4x + 2 - x^2 + 4x - 4
x^3 - x^2 - 2
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