
You get this by switching the f(x) and the x and then solving for the new f(x)
Answer:

Step-by-step explanation:
Start by multiplying both sides by 2, this will get rid of the fraction on the left side and will result in the equation 
Then, subtract 2m from both sides, which leaves the equation as 
Then, subtract 6 from both sides, this results with the equation 
Finally, divide both sides by 10, this will result in m=-1
Combine like terms in the first set and get
41.6x +52/2.6x + 13
I got 16x + 4
Answer:
11x2 + 2x-13
Step-by-step explanation:
We must build the new function f-g, which turns to be a sum between polynomials.
f(x)-g(x)= 12x+20 + 11x2- 10x-33
f(x)-g(x)= 12x+20 + 11x2- 10x-33
f(x)-g(x)= 11x2 + 2x-13