Question

Help Plz! 1 question below!

Answer 1

get out a calculator and check if \(f(-1)=0\) ( it doesn't)
then check if \(f(2)=0\)

Answer 2

unfortunately for you, you are going to have to check all the way up to \(f(6)\) to get your zero
meaning one factor is \((x-6)\)

Answer 3

in fact the whole thing factors as \((x-1) (x+2) (x+5) (x-6)\)

Answer 4

i know, because i cheated
http://www.wolframalpha.com/input/?i=x^4-33x^2-28x%2B60