How many roots does a quadratic equation has ? And what are they

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How many roots does a quadratic equation has ? And what are they

[From: ] [author: ] [Date: 11-09-18] [Hit: ]

-two rootsforbecause two negatives make a positive and two positives make a positiveBut only one root works when it is substituted back into the equation.-depends on equation...........

Always quadratic equation will have 2 roots. And it depends on the equation if those roots are equal, real or complex.

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two roots for because two negatives make a positive and two positives make a positive
But only one root works when it is substituted back into the equation.

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depends on equation.....use quadratic formula [-b(+/-)sqrt(bsquared-4ac)]/2

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