Question

I will award medal !!!!!!!!!!!!!!!!!!
Please Help!!!!!!!!!!!!!!!!!!!
What are the possible rational zeros of f(x) = x4 – 4x3 + 9x2 + 5x + 14?

± 1, ± 1 over 2, ± 1 over 7, ± 1 over 14

± 1, ± 2, ± 7, ± 14

± 1, ± 1 over 4,± 1 over 5, ± 1 over 9, ± 1 over 14

± 1, ± 4, ± 5, ± 9, ± 14

Answer 1

It's so not the third one.

Answer 2

Why not

Answer 3

Doesn't seem to be the correct answer, from the knowledge of looking at your question and answers.

Answer 4

here is a nice explanation of the theorem which may help given you have asked several questions of a similar style

http://www.mathwords.com/r/rational_root_theorem.htm

Answer 5

I am lost in this fancy world of math

Answer 6

so all you need to do are look at the factors of the constant 14...q

\[\pm 1, \pm 2, \pm7, \pm14\]

and the coefficient of the leading term ...p

\[\pm 1\]

and the possible rational roots are \[\frac{q}{p}\]

so just look at those possible combinations.

Answer 7

So it is B

Answer 8

that would be my answer...

Answer 9

Thank you.

Answer 10

I got three more question coming up

Answer 11

its always factors of the constant divided by factors of the coefficient of the leading term