Math  Calculus
posted by William .
Show that the equation x^315x+c=0 has at most one root in the interval [2,2].
Perhaps Rolle's Theorem, Mean Value Theorem, or Intermediate Value Theorem hold clues? ...Other than simply using my TI84, I have no idea how to accomplish this.

See response:
http://www.jiskha.com/display.cgi?id=1298948844