Answer
Inside: $8x^3-x$
Outside: $10g^7$
Derivative: $70(8x^3-x)^6*(24x^2-1)$
Work Step by Step
Use the chain rule to take the derivative $\frac{d}{dx}f(g(x))=f'(g(x))g'(x)$
To find the inside, you take the number inside the parenthesis.
To find the outside, you exchange the parenthesis to a variable.
Then take its derivative and put it together.