Question 349202
Use polynomial long division,
<pre>

         x^2 + 5x - 15
        __________________________
x + 2  | x^3 + 7x^2 - 5x - 6
      -  x^3 + 2x^2
       ---------------------
               5x^2 - 5x - 6
             - 5x^2 + 10x
                --------------
                     -15x - 6 
                   - -15x -30
                     ----------
                           24
</pre>
{{{(x^3+7x^2-5x-6)/(x+2)=(x^2+5x-15)+24/(x+2)}}}