aliensbrain
  • Home
  • Study
  • Quizzes
  • 🎤AI Practicefree
  • Notebooks
  • Community
  • Sign in
  • Quadratic Equations
  • Find the quadratic equation with real coefficients which ...
Multiple choice

Find the quadratic equation with real coefficients which has one root as 1 + 2i.

  1. x2 - 2x - 5 = 0

  2. x2 - 2x + 5 = 0

  3. x2 + 2x + 5 = 0

  4. x2 + 2x - 5 = 0

  5. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

It is the correct answer.

Keep practicing — related questions

  • Directions: Find the one word substitution for the given sentence. One who is cruel and insensitive
  • Directions: Find the one word substitution for the given sentence. One who hates marriage
  • Which of the following are not the uses of a magnetic compass? (1) To find direction (2) To find the direct...
  • Directions: Find the one word substitution for given phrase. A person who thinks only of himself
  • Directions: Find the one word substitution for the given sentence. A person who readily believes others
  • Directions: A sentence is given in four parts (P, Q, R, and S). One of the parts contains a grammatical err...
  • Directions: A sentence is given in four parts (P, Q, R, and S). One of the parts contains a grammatical err...
  • The power of a water pump is 1 kW. If g = 10 ms-2, the amount of water it can raise in one minute to a heig...
Play the full quiz 🎤 Practise this topic out loud

Practice this chapter

  • Algebra (3715 questions)
Advertisement
© Aliensbrain | all rights reserved
  • About
  • Contact
  • Terms and Condition
  • Privacy Policy