Irreducible polynomials

Observation — Irreducible polynomials

Not every polynomial can be factorised further. For example, the sum of squares $x^2+4$, $4x^2+9$, $3x^2+1$ and the like are irreducible polynomials in $\mathbb{R}$, even though they are not of the first degree.

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Topics: Algebraic calculus
Concepts: Irreducible polynomial · Factorisation