Question

find the value of discriminant for each of the following equation(1) 2 y square minus y + 2 is equal to zero

Answer 1

D= b^2-4ac
=1-4x2x2
=1-16
=-15

Answer 2

a=2 , b=-1 and c=2
D= b^2-4ac
= (-1)^2-4(2)(2)
= 1-16
= -15