A Much Harder Quartic Equation, x^4+x^3+x^2+x+1=0

Solving x^4+x^3+x^2+x+1=0
1st way: 0:50
2nd way: 6:20
A similar video, cube root of unity: https://youtu.be/2NmkWRYPSmA

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Видео A Much Harder Quartic Equation, x^4+x^3+x^2+x+1=0 канала blackpenredpen