I have been using a technique that's almost identical to this for years, based s... | Hacker News

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		bograt on Dec 6, 2019 \| parent \| context \| favorite \| on: A new way to make quadratic equations easy I have been using a technique that's almost identical to this for years, based simply on observing that the roots are symmetric around the min/maximum: differentiate, set to zero, then difference of squares. This cannot be an unrecorded technique can it?

mkl on Dec 6, 2019 [–]

No, it's basically what the quadratic formula does. (Well, all methods solve the same equation and get the same roots, so they have to be equivalent.)

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