brianc3hutMAS
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  • 24-05-2016
  • Mathematics
contestada

What is the discriminant of the quadratic equation 0 = –x^2 + 4x – 2?


–4

8

12

24

Respuesta :

Tareki
Tareki Tareki
  • 24-05-2016
from this equation : 
a: the coefficient of x^2 & b: the coefficient of x  & c: the last term 
so a=-1 ; b=4 ; c=-2;
discriminant = b^2 -4*a*c
 = (4)^2 -4(-1)(-2)
= 8 
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