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caylus
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Answer D

Δ=2²-4*5*(-1)=4+20=24

Applying it's formula, the discriminant of the quadratic equation 2x + 5x² is given of 24.

What is the discriminant of a quadratic equation?

A quadratic equation is modeled by:

[tex]y = ax^2 + bx + c[/tex]

The discriminant is:

[tex]\Delta = b^2 - 4ac[/tex]

In this problem, the equation is:

2x + 5x² = 1.

In standard form:

5x² + 2x - 1 = 0.

Hence the coefficients are a = 5, b = 2, c = -1, and the discriminant is given by:

[tex]\Delta = b^2 - 4ac = (2)^2 - 4(5)(1) = 4 + 20 = 24[/tex].

More can be learned about discriminant at https://brainly.com/question/19776811

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