SOLUTION: (X-y)^2=12 xy=1 x^2+Y^2=?

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: (X-y)^2=12 xy=1 x^2+Y^2=?      Log On


   

Question 1006549: (X-y)^2=12 xy=1 x^2+Y^2=?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
%28x-y%29%5E2 = 12, xy = 1 ----- > x%5E2%2By%5E2 = %28x-y%29%5E2 + 2%2Axy = 12 + 2 = 14.