Question

X2 + 2x + 5 = 0 The discriminant

Answer 1

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:

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