Problem #1: Find the two critical values of the function f(x) = x (5 - 2x). 5/2, 5/7 Enter your answer symbolically, as in these examples Problem #1: separate your answers with a comma NIU Just Save Please correct the following errors: Submit Problem #1 for Grading Problem #1: That incorrect answer has already been submitted! Problem #1 Attempt #1 Attempt #2 Attempt #3 Your Answer: NIU Your Mark: 1/2 v X 1/2 VX