To get started you could evaluate f(x) with x= some factor of 24.
Once you have one or two roots you could then use polynomial division.
3. Find all rational zeros of the function:
got no ide how to do it.
4. Given that (1-i) is a zero of the function:
Find all the zeros of the function.
Now for question 4 i got [x-(1-i)], [x-(1-i)] as conjugates now i factor them which gives x^2-2x+2, and now when i use long division ikeep getting -12x^2 as a remainder??????