Can someone please help solve this python coding question?

[Coronacosmo]

I tried the first two inputs and they worked. Then I tried to make x = -1 and the output was -3.0 when it’s supposed to be -9.0. I’m stuck please help.

Updates

+1 y

Sorry the picture was blurry so I will type out what I put in the console:

x = -1
x = float (x)
y = 3*x**2 - 2*x**2 + 3*x - 1

[slatyb]

I don't think it's meant to be an algebra problem. Make a dictionary with x as the key and y as the value:

d = { 0: -1, 1: 3, -1: -9 }

y = d[x]