If a polynomial function f (x) has roots 4-13i and 5, what must be a factor of f (x) ?

a. (x + (13-4i))

b. (x - (13+4i))

c. (x + (4+13i))

d. (x - (4+13i))

Question

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Mathematics

12 July, 07:40

If a polynomial function f (x) has roots 4-13i and 5, what must be a factor of f (x) ?

a. (x + (13-4i))

b. (x - (13+4i))

c. (x + (4+13i))

d. (x - (4+13i))

+4

Answers (1)

Know the Answer?

Markus Petersen · Answer 1

Hello,

Answer D

if 4-3i is a root and that all coefficients of the polynomial are reals,

then 4+3i is also a root

(x - (4+3i)) is a factor of the polynomial

If a polynomial function f (x) has roots 4-13i and 5, what must be a factor of f (x) ?a. (x + (13-4i))b. (x - (13+4i))c. (x + (4+13i))d. (x - (4+13i))

If a polynomial function f (x) has roots 4-13i and 5, what must be a factor of f (x) ?

a. (x + (13-4i))

b. (x - (13+4i))

c. (x + (4+13i))

d. (x - (4+13i))