# How do you factor #x^3-5x+3#?

##### 1 Answer

Jun 12, 2015

The easy way is with a calculator that can find roots of polynomials; the hard way is using the cubic formula.

#### Explanation:

If you have a graphing calculator that can find the roots of an equation, you simply plug it in and find the approximate roots. The graph looks like this:

graph{y=x^3-5x+3 [-10,10, -10, 10]}

A solver will give you three roots, approximately:

So the factorization is approximately:

If you have to do it the hard way, your teacher should have given you the equation (unless you're Good Will Hunting or something). Finis!