The expression can be rewritten as 16x^2.
How to rewrite an expression?
An expression can be rewritten by opening brackets, completing squares, reducing terms from it, etc.
We can rewrite the given expression as follows:
The given expression is (4x)^2.
We can open the bracket of the given expression.
(4x)^2 = 16x^2
We have rewritten the expression. This expression is in the form of k • x^n.
Therefore, we have rewritten the given expression (4x)^2 as 16x^2.
Learn more about rewriting expressions here: https://brainly.com/question/237419
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