Answer
$$2$$
Work Step by Step
$$2^{2}2^{-1}2^{4}2^{-4}$$
1. Applying one of the exponent laws, add all of the exponents together, keeping the base number (2) the same: $$2+-1+4+-4=1$$
$$=2^{1}$$
2. Evaluate the exponent to get the answer: $$2^{1}=2$$
