1. find the derivative of at x=-2 2. find the derivative of f(x)=-9/x at x=6

1)

Step-by-step explanation:

f(x) = 6x⁻¹

f'(x) = -6x⁻²

     =

f'(-2) =

        =

        =

*****************************************************

2)

Step-by-step explanation:

f(x) = -9x⁻¹

f'(x) = 9x⁻²

     =

f'(6) =

        =

        =

32

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.