My First Quintic Equation x^5+x^4+1=0

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Learn how to solve my first quintic equation x^5+4x+1=0. The key is to factor the polynomial into a product of a quadratic and a cubic.
Proof of the cubic formula    • So you want to prove the cubic formula (fr...  

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0:00 solving the quintic equation x^5+x^4+1=0
6:15 Cubic formula debut:
Read more about it: https://brilliant.org/wiki/cubic-equa...

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