Question

find the valu of discriminate 2y2-y+2=0​

Answer 1

Answer:

2y^2 - y + 2 = 0

Here,

a = 2

b = - 1

y = 2

We know,Discriminant = b^2 - 4ac

= (-1)^2 - 4(2)(2)

= 1 - 16

= -15

Answer 2

EXPLANATION.

Quadratic equation.

⇒ 2y² - y + 2 = 0.

As we know that,

⇒ D = Discriminant or b² - 4ac.

⇒ D = (-1)² - 4(2)(2).

⇒ D = 1 - 16.

⇒ D = -15.

                                                                                                                     

MORE INFORMATION.

Nature of the factor of the quadratic expression.

(1) = Real and different, if b² - 4ac > 0.

(2) = Rational and different, if b² - 4ac is a perfect square.

(3) = Real and equal, if b² - 4ac = 0.

(4) = If D < 0 Roots are imaginary and unequal or complex conjugate.