Question

Discriminant of -x²+1/2x+1/2=0

Answer 1

Step-by-step explanation:

$2x | \gamma | 2 \times - 1 = 0$

$= b \gamma 2 - 4ac = 1 + 8 = 9.$

Answer 2

Answer:

9, two real and distinct roots

Step-by-step explanation:

-(x²-1/2x-1/2)=0

x²-1/2x-1/2=0

2x²-1x-1=0 [taking lcm of2 and then solving it]

now,

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

D= b² - 4ac

= (-1)² - (4×2×-1)

= 1 + 8

=9

9>0

therefore, two real and distinct roots