Question

Calcule a derivada da função f(x) = 3x² - 5x - 7 no ponto x = 3.

Answer 1

f(x) = 3x² - 5x - 7
f'(x) = 6x - 5

f'(3) = 6 . 3 - 5
f'(3) = 18 - 5

f'(3) = 13

Answer 2

3.3²-5.3-7
27-15-7
27-23
f(x)=5