teacherlewiss56 teacherlewiss56 17-06-2020 Mathematics contestada Which function has real zeros at x = 3 and x = 7? f(x) = x2 + 4x - 21 O f(x) = x2 - 4x – 21 Of(x) = x2 – 10x + 21 O f(x) = x2 – 10x - 21
