Answer
Possible rational roots: $\pm 1$, $\pm 2$
Work Step by Step
The coefficient of the leading term is $1$, and the constant is $-1$.
Find the factors of the coefficient of the leading term and the factors of the constant term:
Coefficient of the leading term factors:
$\pm 1$
Constant term factors:
$\pm 1$, $\pm 2$
The possible rational roots can be found using the formula:
$\frac{p}{q}$, where $p$ is a factor of the constant term and $q$ is a factor of the leading coefficient.
Plug factors into this formula:
Possible rational roots: $\pm \frac{1}{1}$, $\pm \frac{2}{1}$
Simplify the fractions:
Possible rational roots: $\pm 1$, $\pm 2$
