How do you multiply and simplify #\frac { ( r + 4) ( r - 7) } { r + 4} \cdot \frac { 5} { ( r + 6) ( r + 4) }#?

1 Answer
Jul 9, 2017

Answer:

See below.

Explanation:

We see that the first fraction can simplify, as they both have a #r+4# term. This product then becomes:

# ( r - 7) \cdot \frac { 5} { ( r + 6) ( r + 4) }#

Since nothing else simplifies, our solution is just:

# \frac { 5( r - 7) } { ( r + 6) ( r + 4) }#