Решить систему {ху - 2 (х+у) = 2

{ ху+х+у=29

X+y=29-xy

xy-2 * (29-xy) = 2

xy-58+2xy=2

3xy=60

xy=30

x+y+30=29

x+y=-1

x=-1-y

- (1+y) * y-2 (-1-y+y) = 2

- (y+y^2) - 2 (-1) = 2

- (y+y^2) + 2=2

-y^2-y=0

y (-y-1) = 0

-y (y+1) = 0

y1=0 y2=-1

x1=-1-0=-1 x2=-1 - (-1) = - 1+1=0