Question

Factorise :
(x + 1)² – (y – 1)²
​

Answer 1

Answer:

Let x+y=z

(z+1)2=(z−1)2

z2+2z+1=z2−2z+1

4z=0

z=0

x+y=0

The original equation is actually

12=(−1)2

Answer 2

Answer:

Hope it will help u

Step-by-step explanation:

Here is ur answer