Answer
$\frac{x}{16}$
Work Step by Step
We are given the expression $2^{-4}\times x$.
To simplify this into a positive exponent, we know that $a^{-n}=\frac{1}{a^{n}}$ (where a is a nonzero real number and n is a positive integer).
$2^{-4}\times x=\frac{x}{2^{4}}=\frac{x}{16}$