I need to know how to do it

21. Suppose a firm has two plants with the following costs: Plant 1: C1 = q" - 30q -4,500q + 1,000,000q and Plant 2: C2 = q -60q -6,300q + 2,000,000q. At what output is the average cost? minimized in each plant? Plant 1 average costs are minimized at output q (Enter a numeric response using an integer.) Plant 2 average costs are minimized at output q= 2: Definition The average cost (AC) or average total cost-is the total cost divided by the units of output produced: AC = 5/31/20 3:00 p. m