Find the critical numbers of the function f(z) = 24/5(1 - 4)'. Enter your answers as a comma-separated list wrapped in curly brackets. The order is not important. Answer: {0,4} Your last answer was interpreted as follows: {0, 4} Incorrect answer. Your set should have 3 different elements, but it actually has 2. At least one of the critical numbers is incorrect. Please try again. You have 2 attempts remaining. Try again