Question

Discriminant of the equation 9x² - 3x - 2 = 0 is​

Answer 1

Step-by-step explanation:

It is a quadratic equation.

where a , b and c are constants.

a = 9

b = -3

c = -2

$discriminant = {b}^{2} - 4ac$

$= { ( - 3)}^{2} - 4(9)( - 2)$

$9 + 72 = 81$

Therefore, The discriminant of this quadratic equation is 81

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