Question 72947
<pre>
What values for x must be exluded in the following fraction?
{{{(-1)/(x - 8)}}} 

Remember that the denominator must not be equal to 0


     -1
  _______  ,      x - 8 &#8800; 0
   x - 8

the value of x that is excluded is when the denominator = 0
   x - 8 = 0
       x = 8  

8 is the value of x that is excluded.  
  

I hope this help