Final answer:
The equation log216 = x written in exponential form is (A) 2^x = 16.
Step-by-step explanation:
The equation log216 = x written in exponential form is (A) 2x = 16.
To convert a logarithmic equation to exponential form, you need to rewrite it in the form bx = y, where b is the base and y is the result of the logarithm. In this case, the base is 2 and the result of the logarithm is 16, so the equation becomes 2x = 16.
Therefore, the correct answer is option (A) 2x = 16.