Question 14 of 24 This ques Determine the different possibilities for the numbers of positive, negative, and nonreal complex zeros for the following function. f(x) = -2x+7x-2x-4 What is the possible number of positive real zeros of this function? (Use a comma to separate answers as needed.) What is the possible number of negative real zeros of this function? (Use a comma to separate answers as needed.) What is the possible number of nonreal complex zeros? (Use a comma to separate answers as needed.)