SOLUTION: Can someone help with this word problem: The profit on a watch is given by P = x2 – 13x – 80, where x is the number of watches sold per day. How many watches were sold on a day wh

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Question 81798: Can someone help with this word problem: The profit on a watch is given by P = x2 – 13x – 80, where x is the number of watches sold per day. How many watches were sold on a day when there was a $50 loss?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The profit on a watch is given by P = x^2 – 13x – 80, where x is the number of watches sold per day. How many watches were sold on a day when there was a $50 loss?
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-50 = x^2-13x-80
x^2-13x-30=0
(x-3)(x-10)=0
x=3 or x=10
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Cheers,
Stan H.