Question

Expand

(x + 1



) (x -

1



)​

Answer 1

Answer:

x^2 - 1

Step-by-step explanation:

(x+1) (x-1)

x^2 - 1^2

x^2 - 1

Answer 2

Answer:

( x + 1 )(x - 1 ) = x² - 1²

Step-by-step explanation:

(a + b) ( a - b) = a² - b²

According to the identity

( x + 1 )( x - 1 ) = x² - 1²

Hope my answer helps you :-)