Question

Can we conclude that x - 4 is a factor of the polynomial 4x^3-20x^2+18x-12?
How do you know?

Answer 1

The answer to your question is: x - 4 is not a factor

Explanation:

x - 4 is a factor of 4x³ - 20x² + 18x -12

We can do synthetic division to know if it is a factor

4 - 20 +18 -12 4

16 -16 8

4 -4 +2 -4

x -4 is not a factor because there was a residue of -4