Find the value of $x$ at which the function has a possible relative maximum or minimum point. $($Recall that $e^x$ is positive for all $x.)$ Use the second derivative to determine the nature of the function at this point.

$f(x)=(4x-2)e^{2-4x}$

The function has a relative point at $x=$

$($Simplify your answer. Type an integer or a fraction.$)$