Which of the following show the factored equivalent of f(x) = (2x2 +7x + 3)(x - 3) and its zeros?
a. f(x) = (x + 5)(x + 7)(x - 3); -5, -7, 3
b. f(x) = (x + 3)(2x + 1)(x - 3); -3, -0.5, 3
c. f(x) = (x + 5)(x + 7)(x - 3); 5, 7, -3
d. f(x) = (x + 3)(2x + 1)(x - 3); 3, 0.5, -3

How do you answer this question? (step by step)

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Negative 5 1/12 + negative 4 1/4 + 6 3/4