
Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Ex 4.3
Question 1 (ii) Important Deleted for CBSE Board 2024 Exams
Question 1 (iii) Deleted for CBSE Board 2024 Exams
Question 1 (iv) Important Deleted for CBSE Board 2024 Exams
Question 2 (i)
Question 2 (ii)
Question 2 (iii)
Question 2 (iv) Important You are here
Question 3 (i) Important
Question 3 (ii)
Question 4
Question 5
Question 6
Question 7 Important
Question 8 Important
Question 9 Important
Question 10 Important
Question 11
Last updated at May 29, 2023 by Teachoo
Ex 4.3 ,2 Find the roots of the quadratic equation using quadratic formula (iv) 2x2 + x + 4 = 0 2x2 + x + 4 = 0 Comparing equation with ax2 + bx + c = 0 So, a = 2, b = 1, c = 4 We know that D = b2 4ac D = 12 4 2 4 D = 1 32 D = 31 Hence roots to equation are x = ( )/2 Putting values x = ( 1 ( 31))/2 Since there is a negative number in the root, therefore D will not have any real value. So, there are no real roots for the given equation.