Question

Add: x^2
– y
^2
– 1, y^2
– 1 – x
^2​

Answer 1

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.

Step-by-step explanation: