x \neq -3, simplify \frac{8x - 4}{x + 3} - (4x - 44)(2x + 6) + 8x^3 + 5x^2 - 17x + 4.

There's that notation again which is totally incompatible with this site.  This
site is based on HTML.  I'm guessing you mean this:



I'm not going to do this one for you. It's simpler than the other one:
Here's how:

1. Divide out the fraction term and write the result like this ,
but you'll have numbers for the A and B.

2. Simplify the rest of the expression 
by multiplying the two binomials, then collect like terms.

3. Add in the simplification of the fraction term, and the final answer
will look like this:

 but you'll have numbers where the
letters are.
 
Edwin