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for an 2nd order the roots are : [-b+-sqrt(b^2-4ac)]/2a

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Q: How do you find the roots of an equation?
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Related questions

Write an algorithm to find the root of quadratic equation?

Write an algorithm to find the root of quadratic equation


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When do you use the quadratic formula?

When you need to find the roots of a quadratic equation and factorisation does not work (or you cannot find the factors). The quadratic equation ALWAYS works. And when appropriate, it will give the imaginary roots which, judging by this question, you may not yet be ready for.


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