RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 10. Quadratic Equations

Subject: Maths - Class 10th

Q. No. 8 of Exercise 10B

Listen NCERT Audio Books to boost your productivity and retention power by 2X.

8

Solve each of the following equations by using the method of completing the square:

7x2 + 3x - 4 = 0

Given: 7x2 + 3x - 4 = 0

49x2 + 21x - 28 = 0 (multiplying both sides by 7)


(adding on both sides)


using a2 + 2ab + b2 = (a + b)2


(taking square root on both sides)





Hence the roots of equation are


Chapter Exercises

More Exercise Questions