Finding marginal and average cost from C(x) = 300x - 10x² - 1/3x³

[marutkpadhy]

The cost function of a firm is given by C(x) = 300x - 10x^2 - 1/3x^3.

A) Find the Marginal Cost Function

B) Average cost function

C) The output at which marginal cost is equal to average cost.

 

[MarkFL]

Can you show us what you have tried so we know how best to help?