Respuesta :

Answer:

__9t²-4t-4__

      t-6

Step-by-step explanation:

Let's focus on JUST (t+2)(t-2) first. We can do this:

Multiply t by everything in the second equation:

t²-2t

Then multiply 2 by everything in the second equation:

2t-4

Then subtract those two, according to the second equation:

t²-2t-2t-4

Then simplify:

t²-4t-4

We aren't done yet, though. We have got to multiply the fractions.

Our new equation after simplifying would be:

9·t²-4t-4       (Let's forget about the denominator for a minute)                            

So, our new top equation would be:

9t²-4t-4

Now, in our denominator, we can multiply t-2 by 3, so we get:

t-2·3=t-6

So, our fraction would now look like:

__9t²-4t-4__            That fraction would be your answer.

        t-6              

Sorry if I'm wrong :/