How many real roots does the equation have?
Answer and explanation
Correct answer: A. no real roots
- Step 1: The discriminant is , which gives no real roots. Answer: no real roots. Why not the others: two distinct real roots, one repeated real root and infinitely many real roots don't fit.
Practise more Algebra, calculus and geometry.
Free questions with an explanation for every one, and full timed UNI Admission Exam (Peru) mock tests.