The span of two coprime polynomials of degree at most two, not both constant, is span(1, X), span(1, X² + αX), span(X, X² + β) or span(X + β, X² + γX)

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The span of two coprime polynomials of degree at most two, not both constant, is span(1, X), span(1, X² + αX), span(X, X² + β) or span(X + β, X² + γX) · Prove2Me