The discriminant of the quadratic equation ax² + bx + c = 0 is b² - 4ac.
The equation is √ 2x² − 5x+ √ 2 = 0
So the value of a, b, c are 2, -5, √2 respectively
Therefore, the discriminant is (-5)² - 4(2)(√2) = 25 - 8√2
So, The discriminant for √ 2x² − 5x+ √ 2 = 0 is -8√2