
Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class
Completing the square and Word Problems
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) You are here
Question 2 (ii)
Question 2 (iii)
Question 2 (iv) Important
Question 3 (i) Important
Question 3 (ii)
Question 4
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Completing the square and Word Problems
Last updated at May 29, 2023 by Teachoo
Ex 4.3 ,2 Find the roots of the quadratic equation using quadratic formula (i) 2x2 7x + 3 = 0 2x2 7x + 3 = 0 Comparing equation with ax2 + bx + c = 0 a = 2, b = 7, c = 3 We know that D = b2 4ac D = ( 7)2 4 2 3 D = ( 7 7) (4 2 3) D = 49 24 D = 25 The roots to equation is given by x = ( )/2 Putting values x = ( ( 7) 25)/(2 2) x = (7 (5^2 ))/4 x = (7 5)/4 Solving Both Hence , the roots to equation are 3 and 1/2 .