Suppose the revenue R, in thousands of dollars, from producing and selling x hundred LCD TVs is given by R(x) = −5x^3 + 35x^2 + 155x for 0 ≤ x ≤ 10.07.

30. Assume that the cost, in thousands of dollars, to produce x hundred LCD TVs is given by C(x) = 200x + 25 for x ≥ 0. Find and simplify an expression for the profit function P(x). (Remember: Profit = Revenue - Cost.)

Answer: P(x) = R(x) − C(x) = −5x^3 + 35x^2 − 45x − 25, 0 ≤ x ≤ 10.07.