Question

What are the possible rational zeros of f(x) = x4 + 2x^3 – 3x^2 – 4x + 20 ?
Answer:
A)± 1, ± 2, ± 3, ± 4, ± 5, ± 6, ± 7, ± 8, ± 9, ± 10, ± 11, ± 12, ± 13, ± 14, ± 15, ± 16, ± 17, ±18, ± 19, ± 20

B)± 1, ± 2, ± 4, ± 5, ± 10, ± 20

C)1, 2, 4, 5, 10, 20

D)1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Help por favor:)

Answer 1

All of the factors of 20 over all the factors of 1 so therefore, all the factors of 20

Answer 2

And that would be B

Answer 3

Thank you:)))

Answer 4

yw