Answer:
The rational expression is not written correctly, so i actually can not know the actual expression.
I will try to answer this in a general way, so you can try to apply it to the actual problem.
Now, suppose that our rational expression is:
[tex]\frac{-12d}{-110d + 5}[/tex]
The numerator is -12d, this part does not have any problem at any value of d, so we don't have any undefined value here.
The denominator is: -110d + 5
Now, a rational expression is undefined if the denominator is eqeual to zero (we can not divide by zero)
So an undefined value will be when:
-110d + 5 = 0
d = -5/110
This means that we can not have the value d = -5/110, because this makes the denominator equal to zero.
