Question

${x}^{2 - 4 \times + 4 = 0}$
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Answer 1

de acordo com o enunciado vem:

x^2 - 4x + 4 = 0

(x - 2)^2 = 0

x = 2

Answer 2

x^2 - 4x + 4 = 0

(x - 2)^2 = 0

x = 2