Question

factorisex^2 - y2 - x - y​

Answer 1

Step-by-step explanation:

use the formula a^2 - b^2 =(a+b)(a - b)

therefore,

(x - y)(x+y) - x - y

take -1 common from - x - y

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

=(x+y){(x - y) - 1}

=(x + y)(x - y - 1)      (Ans.)