Answer:
f'(x) = - 14x + 4
Step-by-step explanation:
Differentiate using the power rule
[tex]\frac{d}{dx}[/tex](a[tex]x^{n}[/tex]) = na[tex]x^{n-1}[/tex]
Given
f(x) = - 7x² + 4x - 10, then
f'(x) = (2 × - 7)x + 4 = - 14x + 4
