Answer:
- 24x + 9
Step-by-step explanation:
Differentiate each term using the power rule
[tex]\frac{d}{dx}[/tex] ( a[tex]x^{n}[/tex] ) = na[tex]x^{n-1}[/tex]
Given
f(x) = - 12x² + 9x, then
f'(x) = (2 × - 12)x + (9 × 1) [tex]x^{0}[/tex]= - 24x + 9
