3.5 y = (5x - 2) ⋅ (4x - 1)
Производная функции:
y' = 5 ⋅ (4x - 1) + (5x - 2) ⋅ 4 = 20x - 5 + 20x - 8 = 40x - 13
Ответ: y' = 40x - 13