Can someone please differentiate the following?

Question

-e^([x^3]+4)

Answer 1

f'= -e^(x^3+4)*(3x^2)= -3x^2 e^(x^3+4)

Answer 2

d(-e^u)/dx where u is a function of x is

-e^u • du/dx, so

-e^(x³+4) • (3x²) = -3x²e^(x³+4)