x=4+y
(4+y)^2+y(4+y)=6
16+8y+y^2+4y+y^2=6
x=6+y
2y^2+12y+10=0 I:2
y^2+6y+5=0
y=1 и y=-5
x=7 и x=1
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x=4+y
(4+y)^2+y(4+y)=6
x=4+y
16+8y+y^2+4y+y^2=6
x=6+y
2y^2+12y+10=0 I:2
x=6+y
y^2+6y+5=0
x=6+y
y=1 и y=-5
x=7 и x=1
y=1 и y=-5
y=6-x
6-x-x^2=0
-x^2+x+6=0
D=1-4*(-1)*6=1+24=25
x1=-1-5/-2=-6/-2=3
x2=-1+5/-2=4/-2=-2
Чтобы найти y используем формулу y=6-x
y1=6-3=2
y2=6+2=8