If (x² - 4x + 4)⁺ = 1, how many integer x satisfy the equation?
Correct: B
Base is (x-2)². A power equals 1 when base = 1 or exponent = 0. (x-2)² = 1 → x-2 = ±1 → x = 1,3. Also, if n=0 any x≠2 satisfies, but n is fixed as the exponent 4, so only x=1,3. Hence 2 integers.