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A comment on A new way to make quadratic equations easy.

Re:A new way to make quadratic equations easy by verandacoffee on Friday December 06, 2019 @07:28AM (#21721186)
Isn't this the same as the pq-formula? https://www.matteboken.se/lektioner/matte-2/andragradsekvati... (Link in Swedish).
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Re:A new way to make quadratic equations easy by jsjolen on Friday December 06, 2019 @08:44AM (#21721666)
Yes, and apparently it's also used in Indian schools (see comments found here: https://www.facebook.com/poshenloh ).
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