Question

find x and y, 2/x-y + 10/x+y = 4

Answer 1

Answer:

Step-by-step explanation:

2/x-y  + 10/x+y   =4

2+10/(x-y)(x+y)  =4

12 / x^2-y^2 =4

1/x^2-y^2= 4/12  

1/x^2-y^2=1/3

x^-2-y^-2=1/3