Find the real zeros of f. Use the real zeros to factor f.f(x)= x +6x-9x-14The real zero(s) of f is/are(Simplify your answer. Type an exact

Find the real zeros of f. Use the real zeros to factor f.f(x)= x³ +6x²-9x-14The real zero(s) of f is/are(Simplify your answer. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression. Use a comma to separate answers.Use the real zero(s) to factor f.f(x) =(Factor completely. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression)