Crey | Find the interval in which function f(x) = x2 – 4x + 5 is decreasing (2, ∞), (-∞, 2), (3, ∞), (-∞, ∞)

Question

Find the interval in which function f(x) = x2 – 4x + 5 is decreasing

Options :

(2, ∞)
(-∞, 2)
(3, ∞)
(-∞, ∞)

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