Answer:

Step-by-step explanation:
We need to sum the following two expressions:


expanding the polynomial in the numerator:


This is the most simplified form we can get:

Answer:
The answer of this equation is {2,2,2,2}
Step-by-step explanation:
the number on the left is the x value which is the domain
Most likely rates, percents and ratios at a higher level. Also, multiplication and division of fractions at a higher level.