x^2=4 x=2 x=-2
xy=6 y=3 y=-3
x^2-4 = 0
xy = 6
x^2=4
x=+/- 2
2y=6
y=3
-2y=6
y=-3
ответ: x1 = 2, y1 = 3; x2 = -2, y2=-3
x^2=4 x=2 x=-2
xy=6 y=3 y=-3
x^2-4 = 0
xy = 6
x^2=4
x=+/- 2
2y=6
y=3
-2y=6
y=-3
ответ: x1 = 2, y1 = 3; x2 = -2, y2=-3