If y= (x^2+20)/(x-4) Find all critical Numbers.

After get f' i got the answer -5/4. What did i do wrong or is that the critical number?

Similar Questions
    1. answers icon 1 answer
  1. Find all critical numbers for the function𝑓(𝑥)=𝑥15−𝑥−45 and then list them (separated by commas) in the box
    1. answers icon 0 answers
  2. If y= (x^2+20)/(x-4) Find all critical Numbers.After get f' i got the answer -5/4. What did i do wrong or is that the critical
    1. answers icon 1 answer
  3. 2x^3+3x^2-120xto find the critical numbers I took the derivative which is 6x^2+6x-120 so divide by 6 to simplify x^2+x-20=0 so
    1. answers icon 2 answers
more similar questions