Respuesta :
Answer:
A
Step-by-step explanation:
x^2+3=y
3x-y+1=0
3x+1=y
so x²+3=3x+1
x²-3x+2=0
x²-x-2x+2=0
x(x-1)-2(x-1)=0
(x-1)(x-2)=0
x=1,2
two solutions
Answer:
A
Step-by-step explanation:
x^2+3=y
3x-y+1=0
3x+1=y
so x²+3=3x+1
x²-3x+2=0
x²-x-2x+2=0
x(x-1)-2(x-1)=0
(x-1)(x-2)=0
x=1,2
two solutions