Question

X square-2+1/xsquare-ysquare

Answer 1

use (a+b)^2 first then a^2-b^2 identity.

x^2 - (y^2+2Y+1)
X^2 - (Y+1)^2

(X+Y+1)(X-Y-1)

Answer 2

Answer: (x- 1/x+y) (x-1/x-y)

Hope this will help you