If C(x) = 16000 + 600x − 1.2x2 + 0.004x3 is the cost function and p(x) = 3000 − 6x is the demand function, find the production level that will maximize profit. (Hint: If the profit is maximized, t

If C(x) = 16000 + 600x − 1.2x2 + 0.004x3 is the cost function and p(x) = 3000 − 6x is the demand function, find the production level that will maximize profit. (Hint: If the profit is maximized, then the marginal revenue equals the marginal cost.)