Question

Add
x2-y2-1,y2-1-x2,1-x2-y2​

Answer 1

Answer:

please follow me

Step-by-step explanation:

x

2

−y

2

−1,y

2

−1−x

2

,1−x

2

−y

2

=x

2

−y

2

−1+y

2

−1−x

2

+1−x

2

−y

2

=x

2

−x

2

−x

2

−y

2

+y

2

−y

2

−1−1+1

=(1−1−1)x

2

+(−1+1−1)y

2

−1−1+1

=−x

2

−y

2

−1.

Answer 2

Step-by-step explanation:

ANSWER

x

2

−y

2

−1,y

2

−1−x

2

,1−x

2

−y

2

=x

2

−y

2

−1+y

2

−1−x

2

+1−x

2

−y

2

=x

2

−x

2

−x

2

−y

2

+y

2

−y

2

−1−1+1

=(1−1−1)x

2

+(−1+1−1)y

2

−1−1+1

=−x

2

−y

2

−1.