Learn about polynomial expressions, equations, and functions with step-by-step explanations and practice problems on Khan Academy.

Learn how to determine possible real roots of a polynomial equation in this Khan Academy video.

It can be further simplified for equations with exponents of exponents, for example cosine is an even function and so can be approximated by a polynomial using only even coefficients, in the …

Ups. Da ist etwas schief gelaufen. Bitte versuche es noch einmal. Oh oh, es sieht so aus, als ob wir auf einen Fehler gestoßen sind. Du musst aktualisieren.Wenn dieses Problem weiterhin …

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Learn about radical equations and functions with interactive exercises and videos on Khan Academy.