Question

The factorisation of (x-1)^2 - 1 is *​

Answer 1

Answer:

((x-1)+1)*((x-1)-1)

Step-by-step explanation:

by the formula a square-b square

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Answer 2

Answer:

x(x - 2)

Step-by-step explanation:

a² - b² = (a - b)(a + b)

(x - 1)² - 1² = (x - 1 - 1)(x - 1 + 1) = (x - 2)(x) = x(x - 2)