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3 years ago

X2 + 2x + 5 = 0 The discriminant

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

7 0

Answer:

$\huge\boxed{16}$

Step-by-step explanation:

The discriminant of $y=ax^2+bx+c$ is equal $b^2-4ac$ .

We have the equation:

$x^2+2x+5=0\to a=1,\ b=2,\ c=5$

Substitute:

$b^2-4ac=2^2-4(1)(5)=4-20=-16$

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