X^3+y^3=35
x=5-y
(5-y)^3+y^3=35
125-75y+15y^2-y^3+y^3=35
125-75y+15y^2=35
125-75y+15y^2-35=0
5(25-15y+3y^2-7)=0
5(18-15y+3y^2)=0
5*3(6-5y-y^2)=0
5*3(y^2-5y+6)=0
5*3(y^2-2y-3y+6)=0
5*3(y*(y-2)-3(y-2))=0
5*3(y-3)*(y-2)=0
(y-3)*(y-2)=0
y-3=0
y-2=0
y=3
y=2
x=5-3
x=5-2
x=2
x=3
(x1;y1)=(2;3)
(x2;y2)=(3;2)
2^3+3&3=35
2+3=5
3^3+2^3=35
3+2=5
35=35
5=5