Question

The discriminant of a quadratic equation is the value b2 – 4ac. What is the value of the discriminant of 0 = –2x2 + 6x + 13?

Answer 1

Answer:

140

Step-by-step explanation:

Discriminant of a quadratic equation( ax^2 + bx + c = 0 ) is given by b^2 - 4ac.

 Here, on comparing both eq.

⇒ a = - 2 ; b = 6  and c = 13

      Therefore :

⇒ Discriminant = ( 6 )^2 - 4( - 2  )( 13 )

    ⇒ 36 + 8( 13 )

    ⇒ 36 + 104

    ⇒ 140

Hence the numeric value of discriminant of this equation is 140.

Answer 2

Answer:

140

Step-by-step explanation:

Got it right on the test!