Question

How can you find zero for g(x)=x^3-x^2-4x+4?

Answer 1

technology works
http://www.wolframalpha.com/input/?i=x^3-x^2-4x%2B4

Answer 2

if you are not allowed to use it, then you can see by inspection that 1 is a zero because
\[1-1+4-4=0\]

Answer 3

Thank you

Answer 4

then factor as
\[(x-1)(something)\] which will turn out to be
\[(x-1)(x^2-4)\] and the second term factors easily

Answer 5

yw

Answer 6

:)