SOLUTION: (18) Use the factor theorem t determin which of th following is not a factor of f(x)=3x^4-x^3-68x^2+76x+80 Thanks! Possible answers: (A) x-2 (B) 3x+2 (C) 3x-2 (D) x+5

Algebra ->  Algebra  -> College  -> Linear Algebra -> SOLUTION: (18) Use the factor theorem t determin which of th following is not a factor of f(x)=3x^4-x^3-68x^2+76x+80 Thanks! Possible answers: (A) x-2 (B) 3x+2 (C) 3x-2 (D) x+5      Log On


   

Question 30547: (18)
Use the factor theorem t determin which of th following is not a factor of
f(x)=3x^4-x^3-68x^2+76x+80
Thanks!
Possible answers:
(A) x-2
(B) 3x+2
(C) 3x-2
(D) x+5
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
for A) to be a factor, it means that when x=2, you will get zero for f(x).
for B) to be a factor, it means that when x=-2/3, you will get zero for f(x).
for C) to be a factor, it means that when x=2/3, you will get zero for f(x).
for D) to be a factor, it means that when x=-5, you will get zero for f(x).

So do all 4 calculations yourself :-) and find out.

jon.