RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 10. Quadratic Equations

Subject: Maths - Class 10th

Q. No. 1 of Exercise 10C

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1

Find the discriminant of each of the following equations:

3x2 – 2x + 8 = 0

Given: 3x2 – 2x + 8 = 0

Comparing with standard quadratic equation ax2 + bx + c = 0


a = 3, b = – 2, c = 8


Discriminant D = b2 – 4ac


= (– 2)2 – 4.3.8


= 4 – 96 = – 92


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