Problems from Derivative of the sum of two functions

Find the derivative of $f (x) = x^{5} + 3 x^{4} - 2 x + 1$ .

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The function is a sum of 4 different power functions. Let's apply the rule of the sum: $f^{'} (x) = 5 x^{4} + 12 x^{3} - 2$

$f^{'} (x) = 5 x^{4} + 12 x^{3} - 2$

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