Given:
The function is:
[tex]f(x)=4x^2+2x-4[/tex]
To find:
The value of [tex]f(-x)[/tex].
Solution:
We have,
[tex]f(x)=4x^2+2x-4[/tex]
Substituting [tex]x=-x[/tex] in the given function, we get
[tex]f(-x)=4x^2-2x-4[/tex]
Therefore, the required function is [tex]f(-x)=4x^2-2x-4[/tex].