Analyze the polynomial function f(x)equalsleft parenthesis x plus 3 right parenthesis left parenthesis x minus 5 right parenthesis left parenthesis x plus 6 right parenthesis using parts (a) through (e). Determine the zeros of the function and their multiplicity. Use this information to determine whether the graph crosses or touches the x-axis at each x-intercept. The zero(s) of f is/are negative 3 comma 5 comma negative 6. (Simplify your answer. Type an integer or a fraction. Use a comma to separate answers as needed. Type each answer only once.) Part 5 The least zero is a zero of multiplicity 1, so the graph of f crosses the x-axis at xequals negative 3. The middle zero is a zero of multiplicity enter your response here, so the graph of f crosses touches the x-axis at xequals enter your response here. The greatest zero is a zero of multiplicity enter your response here, so the graph of f crosses touches the x-axis at xequals enter your response here