Solving a non-factorable cubic equation (2 ways, ft. Lagranges Resolvent)

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Hello, 0:00
First way: 0:56
Second way: 3:36

Thanks to Christopher Musso
1:59 - "three square root of X"
2:08 - "three square root of 2"
Should have said "cube root of 2" for both instances.

Lagrange Resolvent: https://brilliant.org/wiki/solving-cubic-equations-lagranges-resolvent/

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