Question

Using synthetic division, find (2x^4 - 3x^3 - 20x -21) + (x-3).

Answer 1

Explanation:

i think you want to know if x-3 is a factor.

x-3=0

x=3

3 ) 2 -3 -20 -21

| 6 9 -33

|----------------------

2 3 -11 |-54

remainder is not zero,it is -54

so x-3 is not a factor of 2x^4-3x²-20x-21