Question

Factorise
$x - 1 - {(x - 1)}^{2}$


Please give step by step explanation​

Answer 1

Step-by-step explanation:

x - 1 - (x - 1)²

= (x - 1) - (x - 1)²

= (x - 1)[1 - (x - 1)]

= (x - 1)(1 - x + 1)

= (x - 1)(2 - x)