# Factorize #7 y^3 (9 y-4) + 9 y - 4# ?

##### 2 Answers

Nov 9, 2016

#### Explanation:

but any odd order polynomial has at least one real root. In this case is

So

equating for all

Nov 9, 2016

#### Explanation:

We have:

I'm going to rewrite this to group together the final two terms:

and now factor out the

We can't do anything with either term that will make this neater or easier to understand, so I'll leave it here.