Question

anyone know how to figure this out?

Answer 1

..

Answer 2

http://www.wolframalpha.com/input/?i=solve%20-11x^4%20-3x^3%20-%2010x^2%20%2B9x%20%2B%2018%20%3D%200&t=ff3tb01

Answer 3

Without going to a computer you can solve this.

First question. Is there a zero between \(0\) and \(1\). YES!

The function is continuous, \(f(0)>0\) and \(f(1)<0\) and so by the intermediate value theorem it must obtain \(0\) as a value on \((0,1)\).

Answer 4

The same reason answers part b)

Answer 5

Do something similar for the rest, note that you can only have at most \(4\).

Answer 6

Hmm with that being said would the answer be D then?