# How do you factor #r^2-9t^2#?

##### 1 Answer

Mar 24, 2017

#### Answer:

#### Explanation:

The problem is a difference of squares. In general,

See the link below for a more in-depth instruction

http://www.mesacc.edu/~scotz47781/mat120/notes/factoring/diff_of_squares/diff_of_squares.html