SOLUTION: One of the roots of the quadratic equation x^2+16x+q=0 is −1. Find q.

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Question 1147909: One of the roots of the quadratic equation x^2+16x+q=0 is −1. Find q.
Found 2 solutions by oscargut, josgarithmetic:
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
Answer: q =15
You can contact me at my email for details : mthman@gmail.com
Thanks

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
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One of the roots of the quadratic equation x^2+16x+q=0 is −1.
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%28-1%29%5E2%2B16%28-1%29%2Bq=0
1-16%2Bq=0
q=16-1
q=15