2
No, it equals -2xy. lrn2math
89
(x, y) = (-3, -3) or (3, 3)
k = 0.1
2
No, it equals -2xy. lrn2math
89
(x, y) = (-3, -3) or (3, 3)
i think its 3y squared
(2, -2)
The two rational solutions are (0,0,0) and (1,1,1). There are no other real solutions.
k = 0.1
Y = X2 forms a parabola
The solutions are: x = 4, y = 2 and x = -4, y = -2
They are +/- 5*sqrt(2)
You have to put your heart into it!