## Intermediate Algebra: Connecting Concepts through Application

$(7m-6n)^2$
The first term is $7m$ squared, the last term is $6n$ squared, and the middle term is twice the negative product of these two terms. Now we can factor the trinomial into a binomial squared. $49m^2-84mn+36n^2$ $=(7m-6n)(7m-6n)$ $=(7m-6n)^2$