(-2;5), (-5;8)
Объяснение:
(x+6)(y-4)=4;
x+y=3.
x=3-y.
(3-y+6)(y-4)=4;
(9-y)(y-4)-4=0
-y^2+13y-36-4=0
y^2-13y+40=0
D=13^2-4*40=169-160=9
y1=(13-3)/2=5, y2=(13+3)/2=8.
x1=3-y=3-5=-2; x2=3-8=-5.
