## College Algebra (6th Edition)

$x-c$
The Factor Theorem$:$ Let $f(x)$ be a polynomial. $\mathrm{a}$. If $f(c)=0$, then $\ \ x-c\ \$ is a factor of $f(x)$. $\mathrm{b}$. If $\ \ x-c\ \$ is a factor of $f(x)$, then $f(c)=0$. Case a: fill in the blank with $x-c$