Galois group of x^3-3x+3
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Galois group of x^4-4x+2
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Galois Theory Explained Simply
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Why you can't solve quintic equations (Galois theory approach) #SoME2
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Galois group of x^4-2x^3-8x-3
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Analysis - f: nonnegative continuous on [a, b]. If c in [a, b], f(c) gt 0, then int_a^b f(x) gt 0
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Why is the determinant like that?
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But why is there no quintic formula? | Galois Theory
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