Question 629300
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Hi,
P= 3n^2-30n-170
P = $430
 430 = 3n^2 - 30n - 170
OR
 3n^2 -30n - 600 =  0 
  n^2 - 10n - 200 = 0
factoring
 (n - 20)(n + 10) = 0    ||ony positive solution is appropriate
    n = 20, number of units produced when the profit is $430