Question

The value of the discriminant of the equation 2x² – 3x + 5 = 0, is ______.

विकल्प

• 31

• `sqrt(-31)`

• `sqrt(31)`

• –31

Answer 1

The value of the discriminant of the equation 2x² – 3x + 5 = 0, is –31.

Explanation:

For 2x² – 3x + 5 = 0, 

a = 2, b = –3, c = 5. 

The discriminant D = b² – 4ac 

= (–3)² – 4 × 2 × 5 

= 9 – 40

= –31

Since D < 0, the equation has nonreal (complex) roots.