Question

what is the value of discriminant for the quadratic equation x-2x-3=0​

Answer 1

Answer:

16

Step-by-step explanation:

Discriminant of a quadratic equation ax² + bx + c = 0 is given by b² - 4ac.

In question,

   a = 1 ,       b = -2       , c = - 3

∴ discriminant = b² - 4ac

                = (-2)² - 4(1)(-3)

                = 4 + 12

                = 16

Discriminant of the given equation is 16.

Answer 2

Given,

• X² - 2X - 3 = 0

To Find,

• The Value of Discriminant for given Quadratic Equation.

Solution,

X² - 2X - 3 = 0

The Quadratic Equation is in The form of;

AX² + BX + C = 0

X² - 2X - 3 = AX² + BX + C

→ (1)(X²) + (-2)(X) + (-3) = AX² + BX + C

A = 1

B = -2

C = -3

Discriminant = B² - 4AC

→ Discriminant = (-2)² - 4(1)(-3)

→ Discriminant = 4 - (-12)

→ Discriminant = 4 + 12

→ Discriminant = 16

Required Answer,

The Value of Discriminant is 16.