# How do you factor #y^4-14y^3+49y^2#?

##### 1 Answer

Sep 18, 2016

#### Explanation:

Take out a common factor of

You should recognize

In

If this relationship exists in the trinomial you will know you have a square of a binomial.

Let's look closer.....

If you missed that, you can try to find factors of 49 which add to 14. This will give you factors of 7 and 7 anyway:

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