What is

y=-2x+1

y=-x^2+4

Answer:X1=1+-1+i (2) ^1/2

x2=-1-i (2) ^1/2

Step-by-step explanation

y=y

-2x+1=-x^2+4

x^2+4+2x-1=0

x^2+2x+3=0

Use

Ax^2+Bx+C=0

X1, X2=[-B + (B^2-4*A*C) ^1/2]/2*A

A=1

B=2

C=3

x=[-2+ / - (2*2-12) ^1/2]/2

x=[-2+ / - (-8') ^1/2]/2

x=[-2+/-2i (2) ^1/2]/2

x1=-1+i (2) ^1/2

x2=-1-i (2) ^1/2