Question

x-1 - x +1\(x+1)(x-1)​

Answer 1

Answer:

$= \: 0$

Step-by-step explanation:

$\frac{x - 1 - x + 1}{(x + 1)(x - 1)} \\ \\ = \frac{0}{ {x}^{2} + b ^{2} } \\ \\ = 0$