Answer:
The polynomial is:
Step-by-step explanation:
A third degree polynomial can be written in function of it's zeros the following way:
In which a is the leading coefficient.
Integer coefficient that have zeros: 1+2i, 1-2i, -4
Leading coefficient: 1
So
Since
Answer:f
−
1
(
x
1) 2/1
2) 13/1