# How do you simplify #\frac { x ^ { 2} - 16y ^ { 2} } { x ^ { 2} + 3x y - 4y ^ { 2} } \div \frac { x ^ { 2} - 8x y + 16y ^ { 2} } { x - y }#?

##### 1 Answer

May 3, 2018

#### Explanation:

Recall that dividing something by

Now we note that most of these terms can be factored. See that the following are true:

Making the replacements as needed, this gives

Thus, our final answer is