How do you simplify #\frac { x ^ { 2} - 2x - 15} { x ^ { 2} - 9} \cdot \frac { x + 3} { x - 5}#?
2 Answers
Oct 20, 2016
Explanation:
Factor the fraction on the left
What are the factors of -15 that add up to -2
Difference of perfect squares
Rewrite the expression using the factors you just found
Now cross cancel
You are then left with
Oct 20, 2016
The expression can be simplified to
Explanation:
Hopefully this helps!