# How do you use the rational root theorem to find the roots of #2x^3 - 9x^2 - 11x +8 = 0#?

##### 1 Answer

May 23, 2015

If

So if this polynomial has rational roots, they must be one of the following:

Unfortunately, none of these is a root, so this cubic has no rational roots and the rational root theorem cannot help us find the roots it does have.