Question 4 - Quadaratic equation - Chapter 4 Class 11 Complex Numbers

Last updated at August 5, 2026 by

Example 10 - Solve x2 + x + 1 = 0 - Chapter 5 NCERT - Examples

Example 10 - Chapter 5 Class 11 Complex Numbers - Part 2

Take a fresh quiz. Then take another.
Every attempt is a new AI-adaptive Teachoo quiz with 5 questions, selected from your answers, mistakes, and progress.
Remove Ads

Transcript

Question 4 Solve 2 + + 1= 0 x2 + x + 1 = 0 The above equation is of the form ax2 + bx + c = 0 Where a = 1 , b = 1 , c = 1 Here, x = ( ( ^2 4 ))/2 Putting values of a , b and c = ( 1 (1^2 4 1 1))/(2 1) = ( 1 (1 4))/2 = ( 1 ( 3))/2 = ( 1 3 ( 1))/2 = ( 1 3 )/2 Thus, = ( 1 3 )/2

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.