(7⋅4⋅6⋅3)4=?
We use the power property for an exponent that is applied to a set parentheses in which the terms are multiplied:
We apply the law in the problem:
When we apply the exponent to a parentheses with multiplication, we apply the exponent to each term of the multiplication separately, and we keep the multiplication between them.
Therefore, the correct answer is option a.