# How do you use the factor theorem to determine whether x-3 is a factor of p(x)=x^4-2x^3+4x-5?

Nov 20, 2015

Calculate p(3) (p(3)=10) if it is 0 then x-3 is a factor

#### Explanation:

If x-3 is a factor then x=3 is a solution to: x^4−2x^3+4x−5