Derivative of x^3-9x^2+24x-15

1. Differentiate $\left(24 x + \left(x^{3} - 9 x^{2}\right)\right) - 15$ term by term:

   1. Differentiate $24 x + \left(x^{3} - 9 x^{2}\right)$ term by term:

      1. Differentiate $x^{3} - 9 x^{2}$ term by term:

         1. Apply the power rule: $x^{3}$ goes to $3 x^{2}$

         2. The derivative of a constant times a function is the constant times the derivative of the function.

            1. Apply the power rule: $x^{2}$ goes to $2 x$

            So, the result is: $- 18 x$

         The result is: $3 x^{2} - 18 x$

      2. The derivative of a constant times a function is the constant times the derivative of the function.

         1. Apply the power rule: $x$ goes to $1$

         So, the result is: $24$

      The result is: $3 x^{2} - 18 x + 24$

   2. The derivative of the constant $-15$ is zero.

   The result is: $3 x^{2} - 18 x + 24$

The answer is:

$$3 x^{2} - 18 x + 24$$