SOLUTION: One of the roots of the equation 3x2+7x−q=0 is −5. Find the other root and q.

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Question 1140138: One of the roots of the equation 3x2+7x−q=0 is −5. Find the other root and q.
Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
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According to the Vieta's theorem, the sum of the roots is  -7%2F3.


Hence, the other root is   -7%2F3+-+%28-5%29 = -7%2F3+%2B+5 = 8%2F3 = 22%2F3.

Solved.