The degree three polynomial ][x) with real coefficients and leading coefficient 1. has 4 and 3 + i among its roots. Express (x) as a product of linear and quadrade polynomials with real coefficients. (a) /(x)= (x+4)(x*+61+10) (b) /()=(x-4)(s' - 6x-9) (c) /(x(x-4)(*-6x+10) (d) /()= (x-4)(* - 6:+9)