SOLUTION: it is given that k is a root of quadratic equation x2+x+c = 0 Find the other root of equation

Question 1047804: it is given that k is a root of quadratic equation x2+x+c = 0
Find the other root of equation

Answer by ikleyn(52780) (Show Source): You can put this solution on YOUR website!
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it is given that k is a root of quadratic equation x2+x+c = 0
Find the other root of equation
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If k and p are the roots, then

k + p = -1     (the coefficient at x with the opposite sign).

Hence, the other root is p = -1-k.

Another solution:

If k and p are the roots, then

k*p = c     (the constant term).

Hence, the other root is p = .  (If "k" is not zero !)

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