Question

discriminant of 2x^2-7x+3=0

Answer 1

EXPLANATION.

Discriminant of equation.

⇒ 2x² - 7x + 3 = 0.

As we know that,

D = Discriminant Or b² - 4ac.

⇒ D = (-7)² - 4(2)(3).

⇒ D = 49 - 24.

⇒ D = 25.

                                                                                                                   

MORE INFORMATION.

Nature of the roots of quadratic expression.

(1) Roots are real and unequal, 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.

Answer 2

Given : 2x² - 7x + 3 = 0

To Find : Discriminat

Solution :

by using, D = b² - 4ac

➻ (-7)² - 4(2)(3)

➻ 49 - 24

➻ 25