Question

Solve
x^2 - 1 - 2y - y^2​

Answer 1

Answer:

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

Step-by-step explanation:

x^2 - 1 - 2y - y^2​

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

x^2 - (1+Y)^2

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

using a^2 - b^2 = ( a - b ) ( a + b )

Answer 2

2.1K people helped. x2-1-2y- y2 =x2-(1+y)2 =(x+y+1)(x-y-1). soobee72pl and 223 more users found this answer helpful.