If \( f(x) = \frac{x^2 - 4x + 4}{x - 2} \), simplify \( f(x) \).

Step 1 ：Step 1: First, we factor the numerator of \( f(x) \) to get \( f(x) = \frac{(x-2)^2}{x - 2} \).

Step 2 ：Step 2: Then, we cancel out the common factor \( x-2 \) in the numerator and denominator to simplify \( f(x) \).