Question

The discriminant of the quadratic equation 2x²+x-1=0 is​

Answer 1

Answer:

here is u r answer

please mark my answer as brainlist

Step-by-step explanation:

Given

2x²+x-1 = 0

ax²+bx+c = 0

Discriminant (∆) = √b²-4ac

= √(1)²-4(2)(-1)

=√9

= 3

Discriminan(∆) = 3

hope u like the answer

Answer 2

Answer:

discriminant of the equatin is 9

Step-by-step explanation:

conmaring with ax2 +bx+c=0

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

therefore,

∆ = b2-4ac............. 2 is b square

∆= 1 -4 x 2 x (-1)

∆= 1 +8

∆= 9

correct✔ answer

I hope it will help you