Question

Find the discriminant of the quadratic equation

2

2 8 0​

Answer 1

Answer:

The question is not there

Answer 2

Answer:

C) 65

Solution:

⇢ 2x² + x - 8 = 0

a = 2

b = 1

c =-8

D = b² - 4 ac

D = (1)² - 4 × 2 × -8

D = 1 + 64

D = 65

_______________________

• Discriminant is used to find the root of the quadratic equation with the help of quadratic formula .

• Quadratic formula for an equation with root x is given by:

• Quadratic formula is also called Shridharacharya formula .

• There are four methods to solve quadratic equation:

Graphing

Completing the square

Factorisation

Quadratic formula