(a) Find all real zeros of the polynomial function,
(b) Determine whether the multiplicity of each zero is even or odd,
(c)determine the maximum possible number of turning points of the graph of the function, and (d) use a graphing utility to graph the function and verify your answers.
1. f (x) = 3x2 + 20x - 32
2. f (x) = x2 + 12x + 36