Hello, how would i go about solving this equation?

z = (6x^4 - 6x^-3 - 2x + 5)^-2

im a little confused with the ^-2 at the end

im only supposed to find it to the first derivative

Also how would i go about solving this one to the first derivative?

x^2 e^3x^2-4x^3-3x+8 (its all one power, e *to the power of 3x * then 3x to the power of 2 .......)

i have this

dy/dx = 2x e^6x - 12x^2 - 3