A Fun Way to Solve Cubics: Vieta's Substitution

Описание к видео A Fun Way to Solve Cubics: Vieta's Substitution

We explore an interesting method of solving cubic equations, using a clever substitution. The method presented works for any cubic, but may require the extra step of writing in the form x^3 + ax + b = 0. See here:
https://en.wikipedia.org/wiki/Cubic_e...

00:00 Intro
00:20 Example
04:15 Solutions
07:43 The general method
11:01 Why don't we get 6 solutions?

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