Question

Factorize the following expressions.

X^2 – 1 -2Y – Y^2

​

Answer 1

Answer:

Using (a+b)

2

=a

2

+2ab+b

2

x

2

+

x

2

1

+2

=(x)

2

+2×x×

x

1

+(

x

1

)

2

=(x+

x

1

)

2