how do you find the derivative

Answer:
h'(x) = -10x + 20
Step-by-step explanation:
To get the derivative of [tex]ax^{n}[/tex], simply use the following formula:
[tex]a(n)x^{n-1}[/tex]
We have the function, h(x) = -5x^2 + 20x
Using the formula, we get the derivative to be:
-10x + 20
so h'(x) = -10x + 20