F(x) = (3x-5)(3x+1) найти производную функции

Question

F(x) = (3x-5)(3x+1) найти производную функции

Answer 1

F ' (x) = (9x^2 + 3x - 15x - 5)' = (9x^2 - 12x - 5)' = 
= 9*2x - 12 = 18x - 12