Final answer to the problem
$4x^{3}$
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Step-by-step Solution
Specify the solving method
1
The power rule for differentiation states that if $n$ is a real number and $f(x) = x^n$, then $f'(x) = nx^{n-1}$
$4x^{\left(4-1\right)}$
2
Subtract the values $4$ and $-1$
$4x^{3}$
Final answer to the problem
$4x^{3}$