Question

The value of the discriminant of the equation x² + 6x – 15 = 0 is ______.

Options

• – 96

• 96

• 24

• – 24

Answer 1

The value of the discriminant of the equation x² + 6x – 15 = 0 is 96.

Explanation:

Given quadratic equation is, x² + 6x – 15 = 0

Compare the given quadratic equation with ax² + bx + c = 0, we get

a = 1, b = 6 and c = – 15

We know,

Discriminant, D = b² – 4ac

= (6)² – 4 × 1(– 15)

= 36 + 60

= 96