Найдите прризводную функций. y=3x^3-4,5x^2

y=3*x^3-4.5*x^2 = > y=3*f (x) - 4.5*g (x)

f (x) = x^3 = > производная = > f ' (x) = 3*x^ (3-1) = > f ' (x) = 3*x^2

g (x) = x^2 = > производная = > g ' (x) = 2*x^ (2-1) = > g ' (x) = 2*x^1 = > g ' (x) = 2*x

=> y'=3*3*x^2 - 4.5*2*x = > y'=9*x^2-9*x = > y'=9*x * (x-1)

Ответ: y'=9*x * (x-1)