Advanced Math practice question

Answer: 1

f(5) = 4 + 1 = 5. The other input with (x − 3)² = 4 is x − 3 = −2, so x = 1.

Common wrong answers

If you answered 3

3 gives 1, the minimum.

If you answered -5

−5 gives (−8)² + 1 = 65.

If you answered -1

−1 gives 17.

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