Galois groups

The Insolvability of the Quintic

Why you can't solve quintic equations (Galois theory approach) #SoME2

Galois Theory Explained Simply

Galois group of x^3-3x+3

Galois Group of x^4-2

Galois group of x^4-4x+2

Galois Extensions: An Example of Finding a Galois Group

Galois group of x^3-3x+1

Visual Group Theory, Lecture 6.4: Galois groups

But why is there no quintic formula? | Galois Theory

What is the square root of two? | The Fundamental Theorem of Galois Theory

What are...the groups of Galois theory?

Group theory, abstraction, and the 196,883-dimensional monster

302.7D: What is a Galois Group?

FIT4.3.2. Example of Galois Group over Finite Field

Basics of Galois Theory Part 1 (Galois groups)

Galois Groups of Finite Fields

Galois group of polynomial || galois extension || abstract algebra || fixed field

302.S7b: Field Automorphisms and Galois Groups

A Brief Introduction to Galois Theory: Galois Group of ℚ(√2) Over ℚ, Gal(ℚ(√2)/ℚ)

Jean-Pierre Serre: How to prove that Galois groups are 'large'

Lecture 20 Galois Groups and Reduction mod p

Alexander Petrov - Representations of Galois groups and families of algebraic varieties

FIT4.3.1. Galois Group of Order 8