MAT Practice Questions - MAT - Mathematics Admissions Test (Oxford) Exam

The quadratic equation x^2 + kx + 9 = 0 has exactly one real root. What are the possible values of k?

k = 6 only k = ±6 k = ±3 k = 9 only

k = ±6

Access more questions from this quiz

Continue to MAT Practice Questions - MAT - Mathematics Admissions Test (Oxford) Exam for more practice questions and the full quiz experience.