Answer:
or 
Step-by-step explanation:
You have the function:

The domain of the function is the set of all the possible input values that the function can has.
We know that the square root of a negative number is not defined in the Real numbers. Therefore, "x" cannot be a negative number.
Then the domain of f(x) will be:
or 
Answer:
combine LIKE terms
Step-by-step explanation:
<span>Answer: All rational equations don’t necessary have a single solution however they do have solutions that can’t fulfill the answer. Any solution where the denominator is equal to zero results in an undefined equation.</span>
Answer:
you cant send pictures unless created on a graphing website but ill try to help. you first have to simplify y, and if you could comment a clearer equation that would be nice because your equation is confusing(cant tell if its all together
Included a pic of the solution and work.