Simplify the complex fraction

Question

Only need an answer 

 

x²-9

-----

x-3

-----

x+3

----

  3

Answer 1

Billy

 

I want to make sure I'm reading this correctly.

 

We have

 

    x²-9

    -----

     x-3

-----------

     x+3

    -----

      3

 

Recall, when you divide by a fraction, you multiply by the reciprocal of that fraction.

 

This gives us

 

x²-9           3
------  •  ------
 x-3         x+3

 

Multiply the numerators and multiply the denominators

 

3(x²-9)

-------- = 3

 x²-9