3x+y=4

x^2-3y=-32

y=4-3x

x^2-3y=-32

x=-4

x=-5

y=4-3(-4)

y=4-3(-5)

y=16

y=19

(x1,y1)=(-4,16)

(x2,y2)=(-5,19)

 

CHECK:

3(-4)+16=4

(-4)^2=3(16)=-32

4=4

-32=-32

3(-5)+19=4

(-5)^2-3(19)=-32

4=4

-32=-32