EXTREME quintic equation! (very tiring)
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solving equations but they get increasingly more impossible?
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7 factorials you probably didn't know
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I can solve any quintic equation!!
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First time solving an A-Level maths exam! (90 minutes, uncut)
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Cubic Formula for Depressed Cubic
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You see nonlinear equations, they see linear algebra! (Harvard-MIT math tournament)
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Como é realmente o pensamento matemático?
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