Abstract

This chapter discusses rings of real and complex polynomials. It presents a theorem which states that every polynomial of a positive degree with complex coefficients has at least one root in the field C of complex numbers. The only polynomials irreducible in the ring C[x] are polynomials of the first degree. In the ring R[x] the only irreducible polynomials are polynomials of the first degree and polynomials of the form x2 + px + q, where p2−4q < 0. The problem of finding roots of algebraic equations is important for the applications of algebra. There are known numerous numerical and graphical methods of approximative solving of equations.

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