SOLUTION: The profit on a watch is given by P=x^2-5x-9 and where x is the number of watches sold per day. How many watches were sold on a day when there was a $15 loss. Any help with this q

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Question 265207: The profit on a watch is given by P=x^2-5x-9 and where x is the number of watches sold per day. How many watches were sold on a day when there was a $15 loss.
Any help with this question would be appreciated. Thanks.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
P=x^2-5x-9
-15=x^2-5x-9
x^2-5x-9+15=0
x^2-5x+6
(x-3)(x-2)=0
x-3=0
x=3 ans
x-2=0
x=2 ans.