Answer:A number decreased by 40
Step-by-step explanation: I really don't feel like explaining this lol...
Answer:
The domain of the function is all real values of x, except
and 
Step-by-step explanation:
We are given the following function:

It's a fraction, so the domain is all the real values except those in which the denominator is 0.
Denominator:
Quadratic equation with 
Using bhaskara, the denominator is 0 for these following values of x:



The domain of the function is all real values of x, except
and 
1287x + 342 +(-198x + 2106) i