Question

Using complete sentences, describe how you would find all possible rational zeros of the polynomial function f(x) = 4x3 - 5x2 + 9x - 6.

Answer 1

Take a look at this, then put what you understand from it in your own words.
http://en.wikipedia.org/wiki/Rational_root_theorem

Answer 2

for a cubicfunction u'll find 3 posssible solutions. the easiest way to go about is: first find one factor of the expression using the remender theorem

Answer 3

then use long division to find a quadratic equation, which u'll then factorise to find the other x-intercept