# How do you simplify #(x^2 – 3x – 10)/(x^2 – 9)div(x^2 + 4x + 4)/(x+3)##?

##### 2 Answers

First, factor your quadratic functions. Finding its roots will lead us to the factors and then it'll be way easier to calculate your result. So, let's find the roots (using Bhaskara)!

Next:

Finally,

Rewriting:

This explanation's going to be all math. I'm assuming you know how to factor polynomials, but if you don't, then don't be afraid to comment to ask how; I don't bite! Okay, let's start.

We can flip the 2nd fraction and multiply it.

Now let's factor the trinomials into binomials. Hopefully this will let us cancel out some stuff.

We can also factor

Now, I can cancel out some of the factors to simplify the answer.

This should be the final answer, unless your teacher prefers to show the factors of trinomials, in which case