What is the discriminant of the quadratic equation 2x + 5x² = 1?
-18, -16, 22, 24 

Solution:

The given quadratic equation is 2x + 5x² = 1.

Discriminant form of the quadratic equation .

D = b² - 4ac

As the quadratic equation in the form.

⇒ 2x + 5x² = 1

By simplification, we get,

⇒ 5x² + 2x - 1 = 0

As the quadratic equation in the form ax² + bx + c =0

Where a = 5 , b = 2 , c= -1

put in the formula

D = (2)² - 4 × 5 × (-1)

D = 4 + 20

D = 24

Therefore, the discriminant of the quadratic equation 2x + 5x² = 1 is 24.

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What is the discriminant of the quadratic equation 2x + 5x² = 1?

Summary:

The discriminant of the quadratic equation 2x + 5x² = 1 is 24.