Use the following function to answer parts a through c. f(x) 2x^3+6x^2+5x+2 a. list all rational zeros that are possible according to the rational zero theorem. (type an integer or a simplified fraction. use a comma to separate answers as needed. type each answer only b. use synthetic division to test several possible rational zeros in order to identify one actual zero one rational zero of the given function is (simplify your answer.) c. use the zero from part (b) to find all real zeros of the polynomial function. the real zeros of the function are (simplify your answer. use a comma to separate answers as needed. type an integer or decimal rounded to threee