Calculate the discriminant: 5x² + 2x − 2 = 0
2 answers:
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
The quadratic formula is b squared -4 (ac)
So we substitute 2 squared -4 (5•-2)
Which the answer would be 44
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