Х=6-у (6-у)^2-3y^2=4 36-12y+y^2-3y^2=4 -2y^2-12y+32=0 y^2+6y-16=0 D=36-4*1*-16=100 x1=(-6+10)/2=2 x2=(-6-10)/2=-8 6-y=2 y=4 6-y=-8 y=14