Question

Calculate the discriminant: 5x² + 2x − 2 = 0

Answer 1

Answer:

44

Step-by-step explanation:

The equation is of the form  a x ²+bx +c = 0 where

a = 5, b= -2, c= -2

The Discriminant is given by:

Δ= b²− 4  * a  *  c

=  (−2²)−  ( 4  *  5  *  ( −  2 ) )

=  4 +  40

= 44

Answer 2

The quadratic formula is b squared -4 (ac)
So we substitute 2 squared -4 (5•-2)

Which the answer would be 44