# How do you factor #x^2 + 6xy + 9y^2#?

##### 1 Answer

May 20, 2015

You can factor this by grouping.

The coefficients of

So, we can rewrite our function as

and factor it by two groups of two terms each:

We can see that the parenthesis of each term are exactly the same, so we can use them as the common multiple of the whole equation that are multipling the rest:

Done!