# How do you use the rational root theorem to find the roots of #x^4 + 3x^3 - x^2 - 9x - 6 = 0#?

##### 1 Answer

Dec 10, 2015

#### Answer:

The roots are

#### Explanation:

By the rational roots theorem, the possible rational roots of

By trial (or division)

By division or trial and error,

Possible rational roots of

By trial,

The roots of