My Moss O An Tr Tasche Use Descartes' Rule of Signs to determine how many positive and how many negative real zeros the polynomial can have. Then determine the possible total number of real zeros. (Enter your answers as comma-separated lists.) P(x)-*-+-+-x+5 number of positive zeros possible number of negative zeros possible number of real zeros possible Need Help? Read I O-15 points SPreCaic7 3.4.090 Show that the polynomial does not have any rational zeros. P(x) 50-625+ 4x²-1 We first determine all the possible rational zeros of P(x). (Enter your answers as a comma-separated list.) x= Starting with the smaller possible rational zero, we evaluate the polynomial. smaller possible rational zero larger possible rational zero Therefore, there are no rational zeros. Need Help? Read It My Notes O Ask Your Teacher