Respuesta :

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Answer:

w² - 2(w)(1) + 1² = w² - 2w + 1 = (w - 1)²

Step-by-step explanation:

(a - b)² = a² - 2ab + b²

We have

w² - 2w = w² - 2(w)(1)

We must add 1²

w² - 2(w)(1) + 1² = (w - 1)²