I am quite new to master theorem and I would like to ask the following question for $ $ 𝑇(𝑛)=4𝑇(𝑛/4)+20𝑛.$ $ If there is a constant value like $ 20n$ does it affect the equation?

Would the equation look something like this for test case 1:

Is $ f(n) = 20n \in O(n^{log_ba-\epsilon}) \in O(n^{\log_4^4-\epsilon}) \in O(n^{1-\epsilon})$ for some $ \epsilon > 0$ ?