Conditions for a quadratic equation to have two equal real roots / Math Tuition / By Justin Tan For a quadratic equation to have two equal real roots, discriminant must be equal to 0. Set up this equality and solve it, you will get the answer. One important thing to note is that for two equal real roots, it also means that a line does not More math topics explained. Odyssey Math Tuition teaches primary, secondary and junior college math tuition at our Eunos centre, and the same syllabus is available as online math courses. See schedules and fees or read common questions. Let’s move on to understand more about no real roots. If you are looking for math tuition, please visit Odyssey Math Tuition Singapore for more information.