$(ax+b)$ is a factor of $f(x)$ iff—

Question

Accepted Answer

$f\left(-\dfrac{b}{a}\right) = 0$

Answer

$f\left(\dfrac{b}{a}\right) = 0$

Answer

$f(0) = 0$

Answer

$f(a) = 0$

(ax+b)(ax+b)(ax+b) is a factor of f(x)f(x)f(x) iff—