Question

What is the value of discriminat for equation-3=x2+2

Answer 1

Discriminant = -20

Explanation:

We have given the quadratic equation:

-3=x²+2

x² = -3-2

x² = -5

x²+5 = 0

Discriminant = b² - 4ac

Where a=1 ,b = 0 ,c = 5

Putting these values in discriminant formula.

Discriminant = (0)² - 4(1)(5)

Discriminant = 0 -20

Discriminant = -20 is the answer.

Answer 2

Discriminant = -20

Explanation:

Discriminant of quadratic equation ax² + bx + c = 0 is given by,

Discriminant = b² - 4ac

It is given that, a quadratic equation,

-3=x²+2

⇒ x² + 2 = -3

⇒ x² + 2 + 3 = 0

⇒ x² + 5= 0

Discriminant = b² - 4ac

Here a = 1, b = 0 and c = 5

b² - 4ac = 0² - 4 * 1 * 5 = -20

Therefore here the discriminant is a negative value