Prosperous2014: 5. The profit of an organization is calculated by the function P(x)=x^2-4000x+780000, where x is the number of units sold. If the net profit is 3800000, find the number of items sold.
You are being told that profit is a function of how many units are sold.
If the net profit is 3800000, find the number of items sold. That means P(x) = 3800000 find x
in other words, solve
3800000 = x^2-4000x+780000
You have to take 3800000 to the other side and solve it using the quadratic formula.
+118654 
