Question

The value of the product of (x+ 1) and (x -1) is equal to (NOTE: x2 is x square)​

Answer 1

Answer:

(x+1)(x-1)= x square-1.

Answer 2

Question given :

• (x+1)(x-1) needs to be solved

Given :

• x² is x square

To find

• The product

Identity used :

• a² - b² = ( a + b )( a - b )

Solution :

= ( x + 1 ) × ( x - 1 )

= x² - 1²

= x² - 1