Respuesta :

Answer:

2(-2)2=0

Step-by-step explanation:

if you meant to put it a different way tell me and i can do the correct one, just because this one seems weird lol

Answer:

Since x is -2, all you need to do is distribute it to the equation.

In the 3rd step, I used the [tex]a^-^m = \frac{1}{a^m}[/tex] formula.

[tex]2x^2-4\\= 2^-^2-4\\= \frac{1}{2^2}-4\\ = \frac{1}{4}-4\\ = \frac{-15}{4}[/tex]