Factor Theorem
What makes a Factor
The remainder equals 0
What is the first step for Factor Theorem
Synthetic division
How do you know the Factor is correct
If it multiples back to the original problem
Is X+3 a factor of 2x3-5x2-x+3
NO
show X-3 is a factor X3-4x2+x+6=0
(x-3)(x2-x-2)