Find the discriminant and the num
x2 + 2x + 7 = 0
A. 28; two real roots

Discriminant = -24, no real roots.

Step-by-step explanation:

The discriminant is what's inside the square root in the quadratic formula.

The quadratic formula is:

and

a = 1

b = 2

c = 7

The question wants the discriminate, we can just focus on the square root part.

When we plug in the parts we got, it becomes:

Since the inside of the square root is negative, there are no real roots.

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