Коэффициенты уравнения

cначала решим с-му ур-ий
x-y = 5
x-y=35

x-y = 5
(x-y)(x+xy+y) = 35

x-y = 5
x+xy+y = 7

x= y+5
y+10y+25 + y+5y + y = 7

x = y+5
3y + 15y + 18 = 0

x= y+5
y + 5y + 6=0

x = y+5
(y+2)(y+3) = 0

1)
y= -2
x =3
p = -1
q = -6

2)
y=-3
x=2
p = 1
q = -6