# How do you use the factor theorem to determine whether x-5 is a factor of #3x^3 - 12x^2 - 11x - 20#?

##### 1 Answer

Nov 15, 2015

Since

#### Explanation:

The Factor Theorem says that

You could use a calculator, synthetic substitution (below), paper and pencil, or many other ways to evaluate

Evaluation using synthetic substitution: