f(x)=x-12x+34x-16 The real zero(s) of f is/are 8,2+ 2,2-2 (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 ans Factor f. f(x) = (Factor completely. Type an exact answer, using radicals as needed. Use integers or fractions for any numbers in the expression.)