what is the second derivative of (x^3-6x)^11 that is fully simplex

Answer 1

y=(x^3-6x)^11
y' = 33(x^2-2)(x^3-6x)^10
y" = 132(8x^4-33x^2+30)(x^3-6x)^9

not sure what you mean by fully simplex for a derivative.