$x^2 - 1 = 0$

Example · High school

Terms

Term	This example	Why
polynomial equation	✓	$x^2 - 1 = 0$ is a polynomial equation. Its solutions are $x = 1$ and $x = -1$, the roots of $x^2 - 1$.
equation	✓
polynomial	✗	$x^2 - 1 = 0$ is not a polynomial, because it is an equation (it includes an equal sign “=”).

All examples · All distinctions · All definitions