# Can #64y^3 + 80y^2 + 25y # be factored? If so what are the factors ?

##### 1 Answer

Jul 14, 2016

#### Answer:

#### Explanation:

First we can take a common factor of

Leaving us with a quadratic inside the brackets which we can use the quadratic formula on:

Notice that the square root term is just zero, so we have a double root of

This means we need a bracket that we can square which will give the original quadratic while also resulting in

Simplest to look at the squared term,

In order for the left hand side to have roots of