Options A, B, and D are the correct answer that is [tex](4 \times4)^{x}[/tex], [tex]4^{2x}[/tex] and [tex]4^{x} \times4^{x}[/tex].
What are exponents?
The exponents of a number are defined as the representation of a number that shows how many times a number is multiplied by itself.
Expression is given as [tex]16^x[/tex]
It can be written as [tex](4 \times4)^{x}[/tex]
[tex]4^{2x}[/tex]
[tex]4^{x} \times4^{x}[/tex]
Thus, option A, B, and D is the correct answer.
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