5. A fourth degree polynomial expression is shown below. (x - 9x +20 )( x2+ 4x - 32) which of the choices is not a factor of the polynomial expression? A , X - 4 B , X - 5 C. X+ 4 D. X + 8 6. A Fourth degree polynomial equation is shown below. ( 2 x 2 + 5 X - 12 ) ( 2 x 2 + 13 x+6) = 0 Which of the choices does not describe a characteristic of the polynomial equation or its graph ? A. one of the solutions of the polynomial equation is X - B . A factor of the polynomial is ( x 46 ) C. one of the zeros of the graph of the polynomial function is located at ( - 4, 0 ) D . The graph of the polynomial Function has three X - intercepts