Find a polynomial function P(x) having leading coefficient 1, least possible degree, real coefficients, and the given zeros. - 9 and 1 P(x)=(Simplify your answer.) Find the following matrix products. Note that each product can be found mentally, without the use of a calculator or pencil-and-paper calculations. 1 0 5 -4 5 -4 1 0 (a) (b) 0 1 0 2 0 2 0 1 0 [1] [ 5 -4 2