Найти производную y=x^2(x-3)
y=(x^3-2)(2x^3+1)
y=x^3(3x+2)
y=(3x^2-4)(7x^2+x-1)

y'=(3x^-4)(7x^2+x-1)'=3*2x(7x^2+x-1)+(3x^2-4)(7*2x+1)=6x(7x^2+x-1)+(3x^2-4)(14x+1)=42x^3+6x^2-6+42x^3-56x+3x^2-4=84x^3+9x^2-56x-10