By applying the concept of discriminant, the discriminant of the quadratic equation 2 · x² - 9 · x + 2 = - 1 is equal to 57.
For a quadratic equation of the form a · x² + b · x + c = 0, the discriminant is equal to d = b² - 4 · a · c. In this problem we must transform the polynomial into the canonical form and calculate the discriminant:
2 · x² - 9 · x + 2 = - 1
2 · x² - 9 · x + 3 = 0
d = (-9)² - 4 · (2) · (3)
d = 81 - 24
d = 57
By applying the concept of discriminant, the discriminant of the quadratic equation 2 · x² - 9 · x + 2 = - 1 is equal to 57.
To learn more on quadratic equations: https://brainly.com/question/2263981
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