CPM Homework Help : INT3 Problem 9-114

For the polynomial function $f\left(x\right) = x^{3} – 5x^{2} + 11x – 15$ , which of the following expressions are possible factors?

Hint:

The factored form of $f\left(x\right)$ will be $\left(x ± a\right)\left(x ± b\right)\left(x ± c\right)$ .
What must be true about the product of $a, b$ , and $c$ ?

$( x + 1 )$

$( x - 2 )$

$( x + 4 )$

$( x - 3 )$