A function f(x)f(x) and interval [a,b][a,b] are given. Check if the Mean Value Theorem can be applied to ff on [a,b][a,b]. If so, find all values cc in [a,b][a,b] guaranteed by the Mean Value Theorem Note, if the Mean Value Theorem does not apply, enter DNE for the cc value.

f(x)=2x^39x^2108x+6 [5,8]