Question: how to find real zeros of the function?
Answer: Find the zeros of the function f ( x) = x 2 – 8 x – 9. Find x so that f ( x) = x 2 – 8 x – 9 = 0. f ( x) can be factored, so begin there. If a polynomial function with integer coefficients has real zeros, then they are either rational or irrational values.