SOLUTION: If f(x)divided by (x-2)= x^3 + 2x - 4 + 13/x-2, what is f(2)? A) 13 B) -4 C) 4 D) -13 (I thought I just plug 2 into the equation but I am not getting any of the answers. Ple

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: If f(x)divided by (x-2)= x^3 + 2x - 4 + 13/x-2, what is f(2)? A) 13 B) -4 C) 4 D) -13 (I thought I just plug 2 into the equation but I am not getting any of the answers. Ple      Log On


   



Question 1065292: If f(x)divided by (x-2)= x^3 + 2x - 4 + 13/x-2, what is f(2)?
A) 13
B) -4
C) 4
D) -13
(I thought I just plug 2 into the equation but I am not getting any of the answers. Please help)

Found 2 solutions by stanbon, MathTherapy:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If f(x)divided by (x-2)= (x^3 + 2x - 4 + 13)/(x-2), what is f(2)?
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f(2) = (2^3+2*2+13)/(0) = 25/0 is undefined because the denominator is zero.
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Cheers,
Stan H.
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A) 13
B) -4
C) 4
D) -13

Answer by MathTherapy(10556) About Me  (Show Source):
You can put this solution on YOUR website!
If f(x)divided by (x-2)= x^3 + 2x - 4 + 13/x-2, what is f(2)?
A) 13
B) -4
C) 4
D) -13
(I thought I just plug 2 into the equation but I am not getting any of the answers. Please help)
Since f%28x%29%2F%28x+-+2%29+=+x%5E3+%2B+2x+-+4+%2B+13%2F%28x+-+2%29, then 


matrix%281%2C3%2C+f%28x%29%2C+%22=%22%2C+x%5E4+-+2x%5E3+%2B+2x%5E2+-+8x+%2B+21%29 <======== THIS IS WHAT f(x) WAS BEFORE ITW'S DIVIDED BY x - 2, to get x%5E3+%2B+2x+-+4+%2B+13%2F%28x+-+2%29

f(2) = 16 - 16 + 8 – 16 + 21